[Xperia Z3 Compact General] Sikatsirx:
Bluetooth : always on (most of the day i have a Bluetooth headset connected, and i always forgot to disable it when i am at home.)

Bluetooth dost seem to drain a lot of battery compared to other phones.

Wifi : always on (Location Based Wi-fi on)

Wifi doesn't drain a lot of battery either on this phone. Head to head comparison with Location based wifi on and off had almost the same results for me and yes. I move around a lot on my work day.

Mobile Data: Always on (4G disabled) Well , i need to be constantly on the internet, so my phone is always connected to Wifi or 3G.

3G drains a lot of battery for sure. A lot more than wifi. I prefer 3G because for my area, i have better signal strength on 3G cells. For some weird reason when i connect to 4G my signal drops a few bars and that doesn't help the battery. So i have 4G disabled, and only enable it when i really need it.

Image Enhancement: off (Doesn't really bother me)

Brightness : 40% Auto : on

Smart backlight control : on (tested on and off and it doesn't seem to have big influence. I have it on cause i find it useful)

Tap to Wake : On (Tested on and off, the difference in battery drain is very very small.)

Stamina Mode: On

Helps to minimize the amount of wakelocks when screen is off, and maximize your sleep time.

Imo you have no reason to have stamina mode off. Especially if you are not rooted. It really makes a difference on the idle time and sleep time of your phone.

If rooted you have more options(apps) to control things along with Stamina mode.

Activation : Always on

Extended Standby : on

Apps Active in standby: Put all your messenger and email apps. Avoid anything else. Don't over do it with apps.

This gives the benefits of Stamina Mode, without compromising your messengers or emails. I have Facebook messenger, Whatsapp, viber, K9-mail there. Don't over do it with apps. Keep in mind this is only the apps that will get mobile data or wifi access when phone screen is off. Less apps=less wakelocks=more sleep time. And keep also in mind that when your screen is on, everything else starts working and syncing as usual.

Extended Usage : On ( This is a powerful phone. Little less power inst gonna make a difference in 80% of the things you do. The difference is not noticeable at all. Phone still runs very smooth, apps open instantly, games play normal, videos run smooth, well maybe if you open your album and has 200 high def pics in it and 20 high def video, you may notice a little lagg in there. I can live with that. Helps battery life, keeps the temperature inside the phone cooler. Playing real racing 3 with on and off setting, is the same for me. If you really need to run something power hungry just disable it, when you need it. other than that, keep it enabled. It helps.

Stamina Clock : On ( i can check time/date, and see if i have any call/msg/mail without going out of stamina mode)

Low battery mode: Off ( i don't use it. I am taking the battery life i want, without using it and compromising how my phone works and feel after a certain battery lvl)

Queue Background Data : ON ( It's smart, and must have on. I helps battery life, without actually compromising anything for you. the concept is to reduce the wakelocks of your phone by Queuing Background Data . It works like a charm, and you wont feel any difference on your everyday use of the phone.)

Auto Sync : On ( i have it on as basic principle, but i have disabled half of what is under google sync. Just keep the sync for what you want, Avoid syncing pics and videos, with cloud storage. At least i do. I use Both Google drive and one drive, but i prefer to choose when i will sync my cloud storage. All others syncs are on for me. Facebook with xperia, whatsup, etc etc, don't have battery drain problems)

Location : On - Battery saving Mode

Location Reporting : off

Location History : off

Google now: Disabled

After lots of tests, this setup seems to work best for my battery life . When i am using navigation, i just turn GPS on. Location on battery saving mode, seems accurate enough for most things.

I use Nova launcher. I don't have problems with it.

I don't have many widgets on my screens. I mostly use folders for my apps icons. i don't use more than three pages, even if i have tones of apps installed. Folders do the trick for me.

Little notes.

SOT is irrelevant and not an indication of anything.

This phone with Screen on doing nothing,or playing with settings or reading articles ,on kinda low brightness ,drains the lowest battery possible. It can go 10+ SOT very very easy. So IMO SOT inst an indication of Battery life. Other things are. This phone has also a very low battery consumption while playing music and watching videos. While making calls though, battery consumption is ok. But not as good as other aspects of this phone.

IMO this phones biggest strength is how it manages power consumption on idle times.

The power consumption when idle and in sleep is unreal. If no wakelocks it can loose like 1-2% over 7 hour sleep.

But even with some wakelocks kick in periodically waking it up, during a 7 hour period, it again manage to loose only 2-4%.

Anyway sorry for my long post, i just wanted to share my views.

I hope this post helped someone here.

hf