Astrum Smart Fitness Band, 45-Day Battery, Sleep & SpO2, Fabric – SB100N

𝟯𝟬–𝟰𝟱 𝗗𝗔𝗬 𝗕𝗔𝗧𝗧𝗘𝗥𝗬 — 𝗖𝗛𝗔𝗥𝗚𝗘 𝗜𝗧 𝗢𝗡𝗖𝗘 𝗔 𝗠𝗢𝗡𝗧𝗛 — A single 2-hour charge lasts 30 to 45 days of normal use and up to 90 days on standby. It stays on your wrist tracking sleep and heart rate instead of sitting on a charger. 𝟮𝟰/𝟳 𝗛𝗘𝗔𝗥𝗧 𝗥𝗔𝗧𝗘, 𝗦𝗽𝗢𝟮 & 𝗔𝗨𝗧𝗢𝗠𝗔𝗧𝗜𝗖 𝗦𝗟𝗘𝗘𝗣 𝗧𝗥𝗔𝗖𝗞𝗜𝗡𝗚 — An optical sensor monitors heart rate continuously, day and night. Measure blood oxygen (SpO2) on demand and track stress through heart rate variability. Automatic sleep tracking runs from 9PM to 9AM, breaking your night into stages — AI menstrual cycle prediction is available in the Da Halo app. 𝗕𝗥𝗘𝗔𝗧𝗛𝗔𝗕𝗟𝗘 𝗙𝗔𝗕𝗥𝗜𝗖 𝗦𝗧𝗥𝗔𝗣 — 𝟮𝟱𝗴 𝗔𝗟𝗟-𝗗𝗔𝗬 𝗖𝗢𝗠𝗙𝗢𝗥𝗧 — The woven fabric strap is soft, breathable and light enough to forget you're wearing it — including overnight, which is when most sleep tracking fails because the band is uncomfortable. Just 25g with a slim 46 × 23 × 11mm profile. Smart enough for the office, comfortable enough for bed. 𝗦𝗠𝗔𝗥𝗧 𝗔𝗟𝗘𝗥𝗧𝗦, 𝗦𝗜𝗟𝗘𝗡𝗧 𝗔𝗟𝗔𝗥𝗠𝗦 & 𝗗𝗔𝗜𝗟𝗬 𝗥𝗘𝗠𝗜𝗡𝗗𝗘𝗥𝗦 — Call and message alerts on your wrist with one-tap rejection. Silent vibration alarms that wake you without waking anyone else. Sedentary reminders to move every hour, Do Not Disturb mode, remote camera shutter, and Find My Bracelet. 𝗦𝗬𝗡𝗖𝗦 𝗧𝗢 𝗔𝗣𝗣𝗟𝗘 𝗛𝗘𝗔𝗟𝗧𝗛 · 𝟭𝟮𝟭+ 𝗦𝗣𝗢𝗥𝗧 𝗠𝗢𝗗𝗘𝗦 · 𝟯𝗔𝗧𝗠 — When you do train, every session syncs automatically to Apple Health — no manual export, no lost workouts. Track 121+ activities with GPS route tracking via your phone. 3ATM (30m) rated for sweat, rain, handwashing and warm showers. Bluetooth 5.1, Da Halo app, Android 5.0+ / iOS 9.2+.