yashsingh1/xdaforums huggingface dataset:
[Android Q&A, Help & Troubleshooting] wuj15:
Hi there,

I am considering getting a S7 , Exynos 8890 , not a S7 edge snapdragon 820. I did an extensive research on google. It seems that only snapdragon chips can enable dual sim (sim 1 :4G, sim 2: 3G).

I stumbled upon this thread, and it seems like you are the ONLY one that got S7 Exynos 8890 , working with dual sim (sim 1: 4G, & sim 2: 3G) after android update. Is it possible for you to post a screenshot? i am sure i am not the only who is looking for an answer. Thank you very much
[Android Q&A, Help & Troubleshooting] grillman:
Heres a couple of screen shots, 1 with 2/3g, look at the signal strength. I'm not sure why it is working and how. Everything that ive read is the same, only 2g on 1 of the sims and 3,4,lte on other. ive had my phone for 8 months and never has it worked in these areas until i loaded the nougat beta, been there twice now and had worked both times. then when i get back into range of 2g towers it quits doing it and i have to change settings to 2g only. Does anybody have an explanation? Im glad it works because we have week or two before they stop all 2g in our area for good. And also says that volte is working, how would 1 check.
[Android Q&A, Help & Troubleshooting] mossywell:
Probably just an innocent mistake by someone. :)

One to add: I see also that the Lenono ZUK Z2 is dual 4g 3g https://forums.whirlpool.net.au/forum-replies.cfm?t=2549107&p=2 "whichever SIM you set as default for data gets 4G, and the other is 3G in my limited testing".
[Android Q&A, Help & Troubleshooting] dennis5pia:
Maybe when USA carriers decommission 2G, all new dual sim phones will be capables of dual 3G, LTE/3G or even dual LTE.
[Android Q&A, Help & Troubleshooting] kms108:
Thats not going to happen, from what I know the US don't have any official dual sim phones, most dual sim phones are from third world countries and most from asian, right now many dual sim, dual standby 4G+3G phones are showing up as some carriers in asian countries are starting to phase out 2G start from december and within the next year or so.
[Android Q&A, Help & Troubleshooting] popo72:
Very very useful thread....

Yes I confirm that leeco x720 le pro 3 also support both sims 3G at same time
[Android Q&A, Help & Troubleshooting] kms108:
HTC Desire 10 Pro can be added to the list.
[Android Q&A, Help & Troubleshooting] kentchristopher:
Regarding the specs on the Sony Xperia X Performance in the document: the SDXC slot is a hybrid slot (not dedicated). Might want to add that.
[Android Q&A, Help & Troubleshooting] simbjow:
This is a fantastic thread as i am looking for a dual sim phone which supports both sim on minimum 3G. I have read through all the posts and i am considering buying the One Plus 3T or the Mi Note 2. I live in Melbourne Australia on the Telstra next work - can anyone give me advice on which is the best phone - or is there a better one out there?

Thanks for your help
[Android Q&A, Help & Troubleshooting] maca2406:
Hi. Please you can refer to the rom needed for Xiaomi Redmi Note 3 to do it?

Please let me know
[Android Q&A, Help & Troubleshooting] dennis5pia:
Yeah, but there are blue model that support WCDMA B4 which is used by T-mobile in the US and in Canada. So those phone are thought to be used in US.

But you are right. Anyway the good thing is that dual 3G phones are merging.
[Android Q&A, Help & Troubleshooting] desp:
Also Redmi Note 3 Pro works on that way (global developer rom, V6.12.1 or newer).

Redmi 4 Prime (global developer rom, V6.12.15 or newer)

Redmi Note 4 (not sure about rom)
[Android Q&A, Help & Troubleshooting] Messerschmitt262:
Does anyone know if the Huawei Honor 8 has dual SIM 3G/4G simultaneously?

I'm finding some sites don't mention dual sim (newegg), and some that do say its dual SIM, are not specific about the 2nd slot if it's 3G or only 2G, and gadgets.ndtv actually specifies the 2nd SIM is not 3G/4G.
[Android Q&A, Help & Troubleshooting] goope:
Isn't this only 4G/2G?
[Android Q&A, Help & Troubleshooting] kms108:
it's shown an a taiwan site to support 4/3 and 3/3.
[Android Q&A, Help & Troubleshooting] deathst:
Hi, as of this moment. Samsung GALAXY S7 and S7 Edge (SM-G930FD & SM-G935FD) in Singapore can run both sims with one on 4G and the other 3G after the recent SW update (G935FXXU1CPL1)
[Android Q&A, Help & Troubleshooting] power_book:
Alcatel Pop4 plus can only do one 4G/3G with the other 2G.
[Android Q&A, Help & Troubleshooting] inquisitor:
You are missing the point. We are looking for phones that does 4G/3G on the primary and 3G for the secondary SIM simultaneously.
[Android Q&A, Help & Troubleshooting] power_book:
it looks like the limitation is in software not hardware for most of phone (Alcatel Pop4 plus use Snapdragon 210 which support LTE dual SIM)

I was hoping that AT&T 2G phase out will make phone manufacturer to release new firmware to unlock this limitation with increase power consumption penalty.
[Android Q&A, Help & Troubleshooting] kms108:
It's limitations on both software and hardware, enabled on the Hisilcone chipset 960 and QC 820 and above, can't comment on the mid range chipset.

---------- Post added at 11:51 AM ---------- Previous post was at 11:48 AM ----------

I like to add the Samsung Galaxy C9 pro also support this, I can't confirm it ATM, but will update this thread once I get the information, on a second note, this phones has separate sim and memory card slot, you can use two sim and memory card together, not hybrid.
[Android Q&A, Help & Troubleshooting] bluheart:
Brilliant thread and thanks for helping ;)
[Android Q&A, Help & Troubleshooting] defender007:
I just wanted to confirm that on my OnePlus 3, I have SIM 1 on 4G and SIM 2 is on 3G. I can receive calls on either SIM. I`m with Bell Canada and they only have 3G/4G networks
[Android Q&A, Help & Troubleshooting] Zoobz:
Hey Guys. I can confirm the LG G5 LG-860 is only 4g/2g compatible.
[Android Q&A, Help & Troubleshooting] redmecha:
Great thread! Very helpful.

I just want to also confirm my wife's OnePlus 3 works with one sim on 3G and other on LTE 4G on US AT&T. I was able to receive calls on both sims and one sim on 4G for data.

Also, my Sony Xperia Z5 Dual only works on one sim for voice and data ever since AT&T killed 2G support.
[Android Q&A, Help & Troubleshooting] reggiewee:
Nice thread which I can well relate to... (am on the same search:D:D:D)

I can confirm that Samsung On 5 (2016) SM-G5700 (which uses the Snapdragon 617 chipset) that I have has 4G +3G capability.

a) When SIM1 is on 4G/3G/2G, SIM2 can be set to be 3G/2G or 2G only.

b) Similarly, when SIM2 is on 4G/3G/2G, SIM1 can be set to be 3G/2G or 2G only.

Other notes:

The G5700 phone that I have was bought in China Dec 2016 (so it doesn't have Google play). Web searches indicate International ROM versions are now sold in Hkg, ANZ).

What other phones are likely In my opinion? (I think below phones are likely, but have yet to verify):

1. Samsung Galaxy On7 (2016) SM-6100, which is a bigger form factor sibling of the On5 (2016).

2. Samsung Galaxy C5 Dual SIM SM-C5000, and its larger sibling: Samsung Galaxy C7 Dual SIM SM-C7000. (Note: these use hybrid slot for SIM2 / SD Card)

Any others? (really not so sure about this one)

3. Samsung Galaxy J5 Prime SM-G570Y. This phone is related to the On5 (2016) in the sense that it looks exactly like it, and is marketed as an equivalent. However it uses the Samsung Exynos chipset (quad core) so I am not sure it does the same thing.
[Android Q&A, Help & Troubleshooting] huuur:
Tested Galaxy On7 works as predicted (4G/3G) or (3G/3G).

Though all devices I came through disconnecting the other sim during the call, is there a hardware supporting both sims active all the time?
[Android Q&A, Help & Troubleshooting] brnrg:
I want to know if the new Xiaomi Redmi Note 4X has the ability to simultaneously maintain a 4G/3G connection on both SIMs?
[Android Q&A, Help & Troubleshooting] Digital Oxygen:
Seconded

The LG H860N may be so, however the H860 is NOT a dual 4G/LTE standby phone. :/
[Android Q&A, Help & Troubleshooting] z4ck1n:
Till date, no phone support..

sim1 / sim2

4g / 4g

lte / lte

volte / volte
[Android Q&A, Help & Troubleshooting] barese:
only with singaporean fw?

Samsung a520f/DS with CSC "xsp" can be added to the list.

Also xiaomi redmi note 3 Special edition (kade) is 4g/3g with miui stock rom.

This is the only csc with this capability for samsung phones?
[Android Q&A, Help & Troubleshooting] pauldemon:
Xiaomi Redmi4 prime(pro) works perfect both sim 3G\4G whit cpu Snapdragon 625.
[Android Q&A, Help & Troubleshooting] LAKEPOWELL:
Great thread !

Any other user of Samsung galaxy S7 edge G 935 FD (Duo model) with Nougat has been able to have 4G/3G ?
[Android Q&A, Help & Troubleshooting] gotiyaa:
What i can confirm is that Moto G4 Plus doesn't support 4G on both sims simultaneously. What it does at least is that it supports 4G on one sim and 3G+2G on other sim.

But this is not completely under user control. It works on simple, but non-user friendly logic - the sim which is used for mobile data connection will automatically switch to 4G network and remains on it (means user can't change the type of network to 3G or 2G for data) and the other sim will switch to 3G+2G network (for this sim user can change network to 3G or 2G).

So the problem arises when you don't want to use data of a sim which works only on 4G frequency and hence that sim will have no network when we are not using data service of that sim.

Hope it helps.
[Android Q&A, Help & Troubleshooting] kms108:
You don't have to comfirm this, currently no phone on the market supports both sim 4G simultaneously, only the current generation phones supports 4G/3G or 3G/3G and old generation or low end market phones supports 4G/2G or 3G/2G
[Android Q&A, Help & Troubleshooting] Prash98in:
I own OnePlus 2 A2003, and my phone does not show signals on both the sims all the time when inserted sims are 4G [JIO] + 4G [Airtel 4G].

However it detects both sims and shows them as 'active' but don't show signal of a sim at all.
[Android Q&A, Help & Troubleshooting] rukzday:
Please confirm

Could you please tell if you can select which sim to have 4g capabilities?

I have an Optus sim and a Lyca sim.I use the Optus one as my main connection and need to use the Lyca sim to make overseas calls.

But even to make a call I need to put the Lyca sim in to a 3g/4g capable phone.So I was thinking if I can select which sim to have 4g capabilities I can switch it when I want to make an overseas call.

Please let me know.I am on the checkout page to buy Sony xperia z3 dual :)
[Android Q&A, Help & Troubleshooting] kluifje:
Here i have a good page what exactly explain about dual 3+3g capabilities

Whirpool.net.au / wiki/ dual _sim _ 4g3g _ phones

Sorry for the strange link but xda dont allow me yet to copy links in threads
[Android Q&A, Help & Troubleshooting] Klaasv00k:
This is a nice thread thanks for this

are the phones full active or only dual standby

because the most phones are dual standby
[Android Q&A, Help & Troubleshooting] Klaasv00k:
new phones to the list i have read the manaual from the huawei p10 and the P10 plus it have also support of 4G on 1 sim / 3G on the other sim

the p10 lite does not support this it is 4G / 2G

The Mate 9 also have 4G/3G

The Nova have 4G/2G
[Android Q&A, Help & Troubleshooting] Codename_Falcon:
Yes you can choose which SIM uses 3G/4G.
[Android Q&A, Help & Troubleshooting] inquisitor:
According to this report by our fellow forum member ckmShih the LG G6 H870DS has dual-4G/3G capability as well.

edit: Confirming the simulatenous 4G/3G capability of the LG G6 H870DS after owning it in the meantime.
[Android Q&A, Help & Troubleshooting] kufu:
Hello,

Great thread, doing a similar research myself.

Any ideea about the HTC U Ultra or OnePlus 3T?

Here is a list with phones from Huawei, Xiaomi and Lenovo that have simultaneously 4G/3G capabilities: http://www.dualsim.ro/categories/Telefoane-Dual-SiM/2-SiM-%2d-Full-3G{47}4G/
[Android Q&A, Help & Troubleshooting] mikegu:
LeEco Le S3

I can confirm that the LeEco Le S3 does dual 4G (LTE sim 1/4G sim 2) on AT&T here is the US. No data on sim 2, but at least now I can make voice calls and SMS on that line, whereas I couldn't on my old BLU Vivo XL since they turned off 2G. BTW, I got the Le S3 because the Le Pro 3 here in the states is not dual sim.
[Android Q&A, Help & Troubleshooting] kms108:
Can you show proof of dual 4g Simultaneous, for all I know, no phone on the market can do that.
[Android Q&A, Help & Troubleshooting] defender007:
The OnePlus 3 I have is 4G on SIM 1 and 3G on SIM 2. I would assume the 3T would be the same.
[Android Q&A, Help & Troubleshooting] PanNet:
I can confirm Sony Xperia XZ dual sim and ZTE Axon 7 support on second sim 3G.
[Android Q&A, Help & Troubleshooting] :
have any sub $100usd phones gotten this capability yet?
[Android Q&A, Help & Troubleshooting] amritrajbharat11:
How to use 4 G network at simeneniously in android kenzo
[Android Q&A, Help & Troubleshooting] kufu:
Here is a list of dual sim phones with simultaneously 4G/3G capabilities: mod edit - sales links removed
[Android Q&A, Help & Troubleshooting] defender007:
Anyone know if the S8+ dual sim is 3G on one slot and 4G on the other?
[Android Q&A, Help & Troubleshooting] RMcT:
Elephone P9000 has 4G + 3G after update to Android 7.0 (20170418), so Mediatek 6755 (P10) does support it.
[Android Q&A, Help & Troubleshooting] roosta:
Kirin 960 chip (used in Huawei Mate 9 and P10 flagships) are 4G/3G. There's no use of the 2nd SIM during a phone call on the first one...otherwise, both work together fine.

RoOSTA
[Android Q&A, Help & Troubleshooting] xiloetekllc:
I have the BLU R1 Plus. I can confirm that it is a dual standby 4G/2G only phone. The second sim always has the network mode grayed out to a 2G default. However I can have both sims with signal and data if I make the secondary sim the default data connection. It will then show a 4G icon above the secondary sim's icon. How can this be if it is 2G only? I can receive calls on both sims and use 4G data. The only problem is that the second sim is prepaid limited data and I cannot use my primary sim's unlimited 4G data. I've tried swapping the sims and applying the configuration but with no success. Both sims will get no signal. This all seems very confusing. I just want to buy a phone that supports 4G data primary and 3G calls secondary at the same time. Any recommendations are appreciated.
[Android Q&A, Help & Troubleshooting] appleton920:
Hello, im looking for a dual phone that can do 4g on sim1 and 3g on dim2 in the USA with AT&T service. Please include model of phone. Thanks in advance.
[Android Q&A, Help & Troubleshooting] Codename_Falcon:
The Samsung Galaxy A9 Pro is also 3G + 4G capable.
[Android Q&A, Help & Troubleshooting] Rajat chandra:
Redmi note 3 pro(sd)

I can confirm that redmi note 3 on latest miui marshmallow supports 4g on one slot and 3g on another...

Initially thought it as a bug:confused::confused::confused:
[Android Q&A, Help & Troubleshooting] ABARKIE:
Is this the Snapdragon Note 3 please?
[Android Q&A, Help & Troubleshooting] Rajat chandra:
Read my post

it is clearly written as redmi note 3 pro(sd) means snapdragon version
[Android Q&A, Help & Troubleshooting] appleton920:
Can it do LTE and 4G or just 4G? Looks like it doesnt have all the bands for ATT
[Android Q&A, Help & Troubleshooting] kms108:
LTE is 4g.
[Android Q&A, Help & Troubleshooting] Codename_Falcon:
I'm not sure what you're calling 4G. It can do LTE and 3G at the same time.
[Android Q&A, Help & Troubleshooting] appleton920:
4G HSPA+:

Shortly after WiMAX launched, T-Mobile upgraded their network to HSPA+ (High-Speed Packet Access Plus) and re-branded the technology "4G". Although this isn't a true fourth generation technology, it didn't stop them from advertising it as such. The 4G campaign was built around their 21Mbps downlink speeds, and has been upgrading to 42Mbps in some areas.

Following T-Mobiles heels, AT&T was quick to re-brand their HSPA+ as 4G too, and further added to the confusion. Most new AT&T devices operating on HSPA+ are capable of up to 14.4Mbps download and 5.8Mbps upload. This isn't quite as fast as T-Mobiles "4G" network, but significantly faster than older 3G GSM networks. You can use our 3G/4G coverage map to check coverage, however, AT&T's map only gives a generic color for 4G. At this time AT&T has significantly more 4G HSPA+ coverage than they do with 4G LTE.

4G LTE:

Last December Verizon Wireless was the first carrier to offer a true fourth generation 4G LTE network launching in 38 markets. Within the last year they've deployed 4G LTE to over 200 markets and anticipate covering their entire 3G network with 4G LTE by the end of 2013. Their 4G LTE network is designed to deliver average speeds around 5-12Mbps download and 2-5Mbps upload with a peak theoretic speed of 73Mbps. As you can see 4G LTE gives you significantly more bandwidth than both 4G WiMAX and 4G HSPA+ networks.

AT&T was a bit late with their 4G LTE network and debuted their fourth generation LTE network in November, nearly a year after Verizon launched theirs. Both Verizon and AT&T have comparable speeds, however, AT&T only has true 4G LTE coverage in 28 markets as of March 30th, 2012. The speeds offered make true 4G LTE the most desirable technology to use if it's available in your area. Knowing the difference between 4G and 4G LTE will also be important if you need any type of amplifier to help boost service if you have signal related issues.

AT&T 4G LTE: 700Mhz between 704-746Mhz*

AT&T 4G HSPA+: 800/1900Mhz
[Android Q&A, Help & Troubleshooting] kms108:
Those are just names the carriers are using to gain service, HSPA+ is consider as 3.9G in real teams at 42Mbps, LTE it's a totally new technology, whiles LTE is still improving and now in the 4.5G stage, HSPA+ at present is only limited to 42Mbps.

In Hong Kong, we still have carriers offering 21Mbps max speed, but they call it 4G.

LTE, 4G and HSPA and HSPA+, the terms related to them are all over the internet in different form, this is how people are getting misleaded and getting the wrong information, I remember there is a thread somewhere discussing about this.
[Android Q&A, Help & Troubleshooting] SeshilaR:
Any Asus Zenfone dualsim simultaneous 4g/3?

I consider to by an asus smarthphone. Bu is there any of asus zenfone have dual sim 3/4g simultaneous?
[Android Q&A, Help & Troubleshooting] xmas_spirit:
can you please share it on google sheets? no everyone here have MS account needed to view. thank you for consideration

edit: nevermind, its working ok without account
[Android Q&A, Help & Troubleshooting] bem30890:
Samsung Galaxy J7 (2017) SM-J730F (NRD90M.J730FXXU1AQF4) 4G+3G does work :o)

I gues they call it a feature: if you swap the data connection to the other SIM the setting

will allways be set to LTE/3G/2G + 3G/2G respectively 3G/2G + LTE/3G/2G - no care about

what I've set before (eg. 3G + 3G)...
[Android Q&A, Help & Troubleshooting] Codename_Falcon:
I think the Zenfone AR supports this.
[Android Q&A, Help & Troubleshooting] Santi_SAZ:
Leagoo T5 supports 4G+3G, but it has a bad battery life [emoji29]

Enviado desde mi ONE A2003 mediante Tapatalk
[Android Q&A, Help & Troubleshooting] bboulou12:
Xiaomi MI5C

Does the Xiaomi MI5C is a dual SIM simultaneous 4g/3G capables phones.? It has a Xiaomi chipset (Xiaomi Surge S1) which is quite powerfull. I ckecked on website but most website specifies that the Xiaomi MI5C does not support that feature( simultaneous 4g/3G) but I had a chat with Alliexpress consultant saying:

"Dear friend

Thanks for your message.

This phone-Xiaomi Mi5c will be installed Custom Firmware. It will support Original multi-language but Can not support OTA.

This phone is MIUI 8. because it is Custom Firmware, it cannot auto update.

After setting , the phone can support 3G WCDMA and 4G FDD-LTE Network. you do not need to download anything, if need we will provide instructions for the setting.

It Supports 4G(TDD-LTE) 3G(TD-SCDMA) and 2G(GSM) networks, so the other sim card default to 3G voice and 2G voice, it depends on the Signal quality"

I am confused regarding Xiaomi MI5C is a dual SIM simultaneous 4g/3G capables phones???
[Android Q&A, Help & Troubleshooting] dennis5pia:
AT&T HSPA+ bands are 850MHZ/1900Mhz band 5 & 2. There's no 800 MHZ band for WCDMA, A least in America.

---------- Post added at 12:32 PM ---------- Previous post was at 12:24 PM ----------

Second sim shows 4G because when you set one sim as DATA default, that sim is provided with LTE/3G/2G capabilities no matter what sim number it is. DATA sim will have the 4G/3G/2G capabilities enabled and the other one the 2G only mode.
[Android Q&A, Help & Troubleshooting] Santi_SAZ:
Idk but perhaps in Xiaomi Mi5C subforum someone knows it.

If I find anything I'll post it

Enviado desde mi ONE A2003 mediante Tapatalk
[Android Q&A, Help & Troubleshooting] bboulou12:
Huawei Nova and Nova 2

Hi,

Does anyone know about Dual sim simultaneous 4G/3G capable for Huawei Nova and Nova 2. I know that Huawei Nova has a Snapdragon 625 chipset, thus I think that the phone is Dual sim simultaneous 4G/3G capable
[Android Q&A, Help & Troubleshooting] dennis5pia:
What's the exact model?
[Android Q&A, Help & Troubleshooting] huuur:
SM-G6100
[Android Q&A, Help & Troubleshooting] hamishnichol:
Xiaomi Mi A1

Thanks to all the contributors - you've really helped me find a dual sim phone that works for me.

I've bought a Xiaomi Mi A1 (direct from China to UK) and confirm I'm getting 4g + 3g at the same time.
[Android Q&A, Help & Troubleshooting] kyon123:
Is the Samsung Galaxy S8 Duos 3G on both SIMs?
[Android Q&A, Help & Troubleshooting] kentchristopher:
It is 3G/4G according to this. I think with all these phones, one SIM has to be at least on 4G/LTE if one is on 3G (but I'd be happy to be proven wrong).
[Android Q&A, Help & Troubleshooting] helblazer:
J7-6 (2016 Edition)

Samsung J7 6 (J7 2016) (J710FN) [Indian Edition] after the latest firmware update to Android 7.0 is supporting LTE + 3g simultaneously. Screenshots attached.
[Android Q&A, Help & Troubleshooting] Santi_SAZ:
Another one to add is Honor V10, 4G+4G capable

Enviado desde mi Lenovo TB3-850F mediante Tapatalk
[Android Q&A, Help & Troubleshooting] kms108:
I don't think it's 4+4, try having both sims in and enabling it.
[Android Q&A, Help & Troubleshooting] Santi_SAZ:
I don't have it, it's a screenshot from a user of that phone. I wrote Honor's chat and they told me, secondary SIM is 4G voice, but I don't know.

I'm planning to change my actually OP2, and I'm looking for a 4G+3G phone and honor V10 is a candidate, the other one could be OP5T.

What do you prefer? There's another device with this features in mid range price that anybody recommend?

Thanks in advance
[Android Q&A, Help & Troubleshooting] igncahyo:
I can confirm Xiaomi Redmi 5A which I bought for 80 USD supports LTE on SIM1 and 3G on SIM2 simultaneously.
[Android Q&A, Help & Troubleshooting] helblazer:
Xiaomi Phones

I can confirm that Mi5, Mi Max, Mi Mix 2, Mi A1, Redmi Note 3, Redmi Note 4, Redmi 4, Redmi 4a and Redmi 5a all support 4g+3g simultaneously.
[Android Q&A, Help & Troubleshooting] katti80:
Huawei Mate 10 Pro can do 4G (and VoLTE/VoWiFi too, if both operators support it) simultaneously on both SIMs. In comes with a matching pricetag though. :)
[Android Q&A, Help & Troubleshooting] jpp604:
The LG Q6 (model LG-M700TV - brazil version) supports 3G on the secondary sim for voice and could be an option as well.

I am sure as after my wife got one, i bought the same model for myself.

JP