Over the past couple of years, Huami has built a name for its Amazfit brand by releasing affordable but capable fitness trackers and smartwatches. The company's latest pair of releases, the Amazfit GTR 2 and GTS 2, look to continue that trend with a long list of features that you'll find on more expensive wearables. To start, both devices include always-on AMOLED displays. That's a feature Apple cut from the Watch SE to get it down to $279. They also come with the usual assortment of fitness-related features, with both featuring Huami's BioTracker 2 heart rate monitor for keeping on top of your resting and active heart rates, as well as stress levels.