Specifications: Length: 8. 5 inches (can be adjusted length 6. 1”- 8. 5”) Weight: 0. 05Ib Battery capacity: 135mAh Function: Time display, Caller ID / Reject, Instant message display (Facebook, Instagram, Twitter etc. ), Lift the wrist screen, Sedentary reminder, Vibrating alarm clock, Do not disturb mode, Automatic step counting, Unlocked, Event reminder, Sleep monitoring, Find phone, Heart rate monitoring, Weather forecast, Target setting, Heat consumption viewer, Speed reminder, Sports mileage, Browse notifications, Timer, Set display item, Low battery reminder, Swimming, Bracelet screen lock etc. More accurate step counting algorithm, daily heart rate changes. Upgrade the step number algorithm again and let your efforts count every step of the way. In addition, The heart rate sensor accurately reads 24-hour heart rate changes and detects current heart rate at any time. Sedentary reminder When you are too busy and forget the time, the band will gently vibrate, remind you to get up and walk. Maintain a better physical condition, stay focused yet relax appropriately. 20 days Long Standby Time With 135mAh battery capacity, Mi Band 4 AMOLED can last for nearly 20 days with normal usage. Also, it’s only 20g weight with strap and 216mm long in total with adjustable Length: 155 - 216mm. Compatibility: Mi band 4 AMOLED support for Bluetooth 4. 0 and above, Android 4. 4 and above, and iOS 9. 0 and above, including most smart phones in marketing. Included: 1 X Host 1 X Charging Line 1 X User Manual (English Version)
Z**A
Great in use, love these watches
The watches are great, especially for this price. I had Mi Band 3 which I lost, so I decided to upgrade to Mi Band 4 and this one has more good functions, like alarm and brightness controls on the watches. Didn’t really try the music switch, cause it’s faster to do with the headphones, but I think it is nice addition. I also like that the screen is flat and colorful, you can see what is in the screen much better on than sun than on the previous model.The only downside is that from time to time watches stop receiving notifications, which is annoying since that’s the first reason why I needed it. Quick screen synchronization helps, but I’d like not to have to do it at all.
P**.
Works well
This is my second band, first one worked well, so I bought another one as a gift. My only gripe is that it's necessary to install an app to make it work, and this app is not the best.
A**O
Great simple activity tracker
Daughter loves it so far. Works great to track her runs and swims. Definitely worth the money.
J**Y
Works great
Works great ,great price
K**S
Awesome product
Good product, matching the price
A**R
Happy with my MI4
This has a lot of functions, and is usefull for a good price.
A**R
Perfecto.
Todo llegó como se esperaba y en el tiempo adecuado.
M**Y
Todo
Muy práctico para uso diario.
Trustpilot
3 weeks ago
2 months ago
