Great watch
Advantages: AMOLED screen on par with samsung products, really punchy colors, build quality is very good, sound is good. Performance is very good.
Limitations: Cell signal is not as good as your normal smartphone, but not bad at all, still usable as a standalone. Battery life in my experience: -sim card in, all radios on, about 3.5 hours of screen on time, might last more if screen off. -only bluetooth on to get internet from my phone(tethering), about 10 hours. -all radios off (airplane mode) using it just to check time with wrist movement on, lasts about 18 hours.