Amazfit GTR Mini Smart Watch,1.28" (3.25 Cm) Always-on AMOLED Display,416*416 PX,SpO2,Heart Rate Blood Oxygen Monitor, 14-Day Battery Life, 120 Sports Modes, Accurate GPS Tracking Fitness (Midnight Black)   Features: Slim & Stylish Design with Stainless Steel: The classy round Amazfit GTR Mini. 1.28" (3.25 Cm) Always-on AMOLED Display with high 326 PPI Resolution for a crystal clear image and sharp details. At a super-slim 9.25mm and lightweight 24.6g, the GTR Mini not only looks compact, but is also very comfortable to wear thanks to its skin-friendly silicone strap. 2 Long Battery Life: Empowered by the Zepp OS 2.0 and dual-core Huangshan 2S chip, the Amazfit GTR Mini packs the self-developed software and hardware to conserve the battery power you need to crush your goals for up to two weeks at a time.Basic Usage Battery Life: 14 days. 3 24/7 Heart Rate, SpO₂ & Stress Monitoring: The Amazfit GTR Mini uses the BioTracker™ 3.0 advanced biosensor to automatically monitor your SpO2 level 24 hours a day (once enabled). The watch will also send a reminder if it detects your SpO2 level is too low while in a non-sleep state. Alternatively, whenever you’re engaged in intense mental or physical activity, or even just feeling uneasy during your day, initiate a manual SpO2 test for result in as little as 15 seconds. 4 5 Satellite Positioning Systems: From cycling through city streets to walking through wild woodland - wherever your travels take you, support for five satellite systems means the Amazfit GTR Mini will be able to pinpoint your position with precision. 5 120+ Sports Modes & Smart Recognition: Whatever workout gets you pumped, the Amazfit GTR Mini can likely track data for it. Check your steps, calories burned, and more for over 120 different sports, and get a post-workout report when you're done!