The tl;dr is that if all you care about is picture quality, OLED is the way to go. If you want something extremely large (100 ...
Xiaomi Smart Band 10 Glimmer Edition has a pill-shaped AMOLED display It is claimed to last for up to 21 days on standard usage Xiaomi Watch S4 41mm is claimed to last for up to eight days ...
The Ollee Watch features an ARM Cortex-M4/M0+ low-power processor with support for Bluetooth Low Energy and a programmable NTAG213 NFC tag (although this is said to only be compatible with the F-91W ...