Smart app ring counter, portable 5V DC digital Bluetooth counting ring, wearable rosary counter with time reminder

Semi-finishedproduct : No Battery Included : Yes High-concerned chemical : None Gaqqee Model : no Model Number : Smart App Ring Counter Type : 4-digit Counters DIY Supplies : Electrical Brand Name : Gaqqee Origin : Mainland China Certification : CE,RoHS Battery Capacity : 120mAh Product Dimensions : 20mm (non-adjustable) Counting Range : 9999 (maximum)

Calorie Counter: yes Heart Rate: yes Pedometer: yes Battery capacity: 200 m·Ah Compatible os: Android,iOS Resolution: 410×494 Display type: AMOLED Waterproof: yes Standby Time: 3 days