dizhenhui104-jiaju SR05 - Waterproof Bluetooth 5.1 Heart Rate

Fitness and Health Smart Ring Waterproof Bluetooth 5.1 Heart Rate Blood Oxygen Sleep Monitor for Android and iOS Origin: Mainland China Certification: CE. Model No.: SR05 Color: Matte Black, Matte Silver, Tin Color (Optional) Size: 7 (inner diameter 17.4mm), 8 (inner diameter 18.2mm), 9 (inner diameter 19mm), 10 (inner diameter 19.9mm), 11 (inner diameter 20.7mm), 12 (inner diameter 21.5mm). Material: titanium alloy + glue filling process Chipset (main chip model): German Dialog DA14531) - very low power consumption, durable. Memory body storage capacity (ROM+RAM): 128kb ROM + 96Kb RAM. Accelerometer: SC7A20 Bluetooth compatible version: 5.1 MobileAPP-GPS (Support GPS data on the side of APP): Yes Heart rate sensor: Tianyi 3602 Battery Type: Pure Cobalt Polymer Battery Operating temperature range (working temperature): 0-50℃ Battery Capacity: 16mAh Charging time: 2 hours Standby time: 10-15 days Working time with normal use: 2 days. 7-9 days: Charging: Magnetic charging + charging box (the charging box is not included in the product) Compatibility: Support Android 5.0 and above; Compatible with Apple compatible with iOS 10.0 and above. App: Jring OTA Support: Support Fota Update Operational definition: no touch or button on the ring; the app starts the exercise and test operation. Waterproof: 5ATM waterproof, can be worn for diving or snorkeling, supports waterproofing to a depth of over 50m. Weight: about 25g Gross weight: 59g Package size: 80 x 80 x 27 mm. Note: Due to the different monitor and light effect, the actual colour of the item may be slightly different from the pictures. Please allow 1-2cm error due to manual measurement. Box contents: 1 x Smart Ring 1 x charging cable. 1 x user manual (English language not guaranteed).