[Device Reviews and Information] Alberto96:
Review

For those following my reviews you will notice that this one (and all other that might be released in the future) is different. Why? I don't want my reviews to be all the same anymore, so i am adopting this new format that is shorter, easier to read and without lots of photos.

Joining the battery phones area, the BLUBOO S3 comes with an huge 8500mAh battery (real capacity, confirmed with my USB Tester) but low/mid-end specsfor the 2018, probably the only real downside about this device.

Something that really impressed me is the amount of accessories provided in the box, absolutely outstanding, and here is a full list of them: 1x Type-C to Micro/Type-C/Lightning USB to charge other devices, 1x Type-C to USB A adapter, 1x Pump Express Charger (up to 12v), 1x USB Type-C Cable, 1x Type-C to 3.5mm Headphone Jack adapter, 1x Extra Plastic Screen Protector and 1x Black TPU cover. The most complete set i have ever seen for a smartphone, seriously.

Nothing to complain about its build quality, it is well-made with no imperfections, even though i am not an huge fan of this plastic back case since it makes the device really slippery and doesn't feel nice in the hand. I like the visual effect though, similar to a grill. The weight that BLUBOO declares can be confirmed, 285g based on my scale, not extreme considering the metal chassis.

The FHD+ 18:9 screen is just perfect, pretty bright, with excellent colors and a reasonable refresh rate (not excessive smearing effect can be noticed). Bezels are limited enough, but could have been slimmer.

Something i have to complain about is the software. BLUBOO writes Android 8.1 on the box while the device runs Android 7.0 instead. Sure, i know that the website says Android 7.0 (upgradable via OTA to 8.1 soon), but you can't write false things on the box, instead "7.0 (8.1 via OTA)" would have been better and fair. I hope to not see this happening again.

Anyway, the Android 7.0 Nougat OS (usual Mediatek release) runs decently but its smoothness is limited but the chipset that isn't ideal to handle a FHD+ screen. An Helio P23 or P25 is the minimum for this resolution IMHO.

But, there is something really important to say about this software release: it doesn't come with any malware/virus unlike what happened with all previous BLUBOO devices. Well done BLUBOO for the positive change.

This is the first device, as far as i remember, that comes with a dedicated option to charge other devices. I am not sure if it does allow more than the usual 0.5A USB current, but i doubt it is just a placeholder option. Unfortunately i don't have an USB trigger that can be used together with my tester to show the real current, but if some of you can do this test, please leave here a post.

Confirming what i mentioned before, benchmarks are quite low due to the high-res display, but some of them (those not GPU-intensive) perfectly match other MT6750T devices.

Here you can see all of them: https://imgur.com/a/CeKxs6t

Unfortunately the GPS Antenna is the achilles heel of this device, completely unusable indoors (left), and just decent outdoors (right).

Average 4G signal reception with decent speeds, and the same applies to 3G networks. Unfortunately there is no WiFi AC support, but in WiFi N-mode 5GHz i am able to get the maximum speed from my internet connection.

Camera are slightly over average for a battery phone, with a Samsung 16MP sensor for both sides (back and front), holding the second primate about this camera configuration, never seen before. The back camera is able to shot sufficient photos, as noisy as on all Mediatek Devices coming with this camera sensor, and sometimes, without HDR mode turned on, photos seem to be over-exposed, but the amount of detail is impressive unless the amount of available light decreases. Let's say that it requires just some minor improvements via an OTA update.

Finally, the battery life of the beast. First of all, i need to clarify something about this MT6750T chipset. It is super power-hungry, not power efficient, and on this device it is stressed to the maximum due to the max resolution. What does it mean? It means that even with such a big battery, it is hard to get good results, and the PCMark Battery Test can confirm that, only 18h. The Helio P23, with smalller batteries, is able to exceed that result. Still, it is not a bad result, just don't expect miracles even though the battery capacity is real.

What to say about this device...if BLUBOO (or well, sellers) manages to keep the price low, i think it can be declared as one of the best Mediatek battery phones available on the market, as long as they maintain the promise about this declared Android 8.1 Oreo OTA update.

Recommended to those who don't mind about the weight and thickness about a device.

Device Rating: 8.3

Pros: Decent Battery Life; Solid and sturdy; Excellent Screen

Cons: No Headphone Jack; Outdated and slow Chipset; Disappointing GPS Quality​