Xiaomi Mi Smart Band 4 Explained

Xiaomi Mi Smart Band 4
Developer:	Xiaomi
Manufacturer:	Anhui Huami Information Technology Co. Ltd
Family:	Mi Band
Type:	Activity tracker, Watch
Generation:	4
Power:	135 mAh
Soc:	Dialog DA14697 ^[1]
Memory:	512KB
Storage:	16MB
Display:	0.95 inch AMOLED
Connectivity:	Bluetooth 5.0 BLE NFC in some models.
Weight:	22.1 g
Predecessor:	Xiaomi Mi Band 3
Successor:	Xiaomi Mi Smart Band 5

The Xiaomi Mi Smart Band 4 (Xiaomi Mi Band 4 in China) is a wearable activity tracker produced by Xiaomi Inc released in China on 16 June 2019,^[2] in Europe on 26 June 2019^[3] and in India on 19 September 2019. It is 39.9% larger than its predecessor, has a super capacitive AMOLED display and features 24/7 heart rate monitoring.

Specifications

Specifications:^[4]

• Display: 0.95 inch AMOLED, full color touch screen;
• Colour depth: 24bit;
• Screen brightness: Up to 400 nits;
• Resolution: 120 x 240;
• Button: Single touch button (wake up, go back);
• Connectivity: Bluetooth version 5.0 BLE; NFC on some models;^{[5] [6]}
• Mass: 22.1 g;
• RAM: 512KB;
• Storage: 16MB:
• Battery: LiPo, 135mAh, 20 days of battery life;
• Sensors: accelerometer, gyroscope, PPG heart rate sensor, capacitive proximity sensor;
• Waterproof: up to 50 metres, 5 atmospheres

See also

• Xiaomi
• Xiaomi Mi Band
• Xiaomi Mi Band 2
• Xiaomi Mi Band 3
• Xiaomi Mi Smart Band 5

References

Mi Smart Band 4 full specification

Notes and References

1. Web site: Mi Band 4 - Teardown, Disassembly, Crush test. GeekDoing. 2019-07-07. en-US.
2. Web site: Official: Mi Smart Band 4 is super-budget swim tracker with 20-day battery life. Black. Marie. Tech Advisor. 2019-06-15. 16 June 2019. https://web.archive.org/web/20190616130710/https://www.techadvisor.co.uk/new-product/wearable-tech/mi-smart-band-4-3693779/. dead.
3. Web site:
   1. MiSmartBand4, todo lo que necesitáis saber sobre ella está resumidito aquí mismo #XiaomiLoPetapic.twitter.com/vDgqXZwAAT
   . España. Xiaomi. 2019-06-12. @XiaomiEspana. es. 2019-06-15.
4. Web site: Mi Smart Band 4 Specifications. www.mi.com. 2019-06-15.
5. Web site: Xiaomi unveils Mi Band 4 w/ color display, NFC, more. Wilde. Damien. 2019-06-11. 9to5Google. en-US. 2019-06-15.
6. Web site: 小米手环4 NFC版 参数-小米商城. www.mi.com. 2019-06-15.