Amazfit GTR 3 Pro, GTR 3, and GTS 3 wearables go all out on battery life (updated)

The Zepp OS health-tracking gadgets are platform-neutral, playing nice with both Android and iOS operating systems, on top of cooperating with popular fitness apps like Apple Health, Google Fit, Strava, Relive, Runkeeper, and TrainingPeaks.

Amazfit GTR 3 Pro review: A fully-featured smartwatch with excellent battery life

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Amazfit unleashes GTR 3 Pro, GTR 3 and GTS 3 Series Smartwatches in UAE - TECHx Media

Amazfit GTR 3 Smart Watch for Men, 21-Day Battery Life, Alexa Built-in, 150 Sports Modes & GPS, 1.39”AMOLED Display, SpO2 Heart Rate Tracker, Water Resistant, Fitness Watch for Android iPhone, Black

The Amazfit GTR 4 uses industry-leading dual-band circularly-polarized GPS antenna technology so you can enjoy stronger positioning that's 99percent as accurate as top handheld GPS locators. The Amazfit GTR 4 is the industry's first smartwatch with anti-glare technology on the glass bezel cover, and the large 1.43 AMOLED display has an anti-fingerprint coating to keep your watch looking pristine.

Amazfit GTR 4 - Vintage Brown