Even Garmin has largely moved to AMOLED screens. They look great both indoors and outside and with modern technology they are not as battery hungry as they once were. Personally I find the battery life on my Apple Watch more than acceptable. I charge it while I’m showering and getting readying in the morning and have never had any issues even though I am a very heavy watch user and often use it independently of my phone.

I used to have a Pebble Time and agreed the battery life with those displays is nice, but honestly it doesn't bother me to put it on the charger every evening.

The only real benefit a longer battery life would have is not needing to bring a special charger if I go out of town for a few days, but I solved that years ago using a power bank that has qi and watch charging pads on it as my travel charger.

If anything, I'd switch back to a Pebble or similar because the Apple Watch does too much and I don't want that much gizmo on my person all the time. But the Pebble reboot products don't do it for me design-wise.