Xiaomi Mi Smart Band 4
{{Use dmy dates|date=November 2019}}
{{Infobox information appliance
| name = Xiaomi Mi Smart Band 4
| Image = Mi Band 4 default face.jpg
| developer = Xiaomi
| manufacturer = Anhui Huami Information Technology Co. Ltd
| family = Mi Band
| type = Activity tracker, Watch
| generation = 4
| lifespan =
| media =
| os =
| power = 135 mAh
| cpu =
| soc = Dialog DA14697 {{Cite web|url=https://geekdoing.com/threads/mi-band-4-teardown-disassembly-crush-test.984/|title=Mi Band 4 - Teardown, Disassembly, Crush test|website=GeekDoing|access-date=2019-07-07|language=en-US}}
| memory = 512KB
| storage = 16MB
| display = 0.95 inch AMOLED
| input =
| connectivity = Bluetooth 5.0 BLE
NFC in some models.
| dimensions =
| weight = 22.1 g
| predecessor = Xiaomi Mi Band 3
| successor = Xiaomi Mi Smart Band 5
| website = {{URL|https://www.mi.com/global/mi-smart-band-4/|Official website}}
| title =
| releasedate = {{Start date|df=yes|2019|06|11}}
| unitssold =
| unitsshipped =
| size =
| topgame =
| price =
}}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,{{Cite web|url=https://www.techadvisor.co.uk/new-product/wearable-tech/mi-smart-band-4-3693779/|title=Official: Mi Smart Band 4 is super-budget swim tracker with 20-day battery life|last=Black|first=Marie|website=Tech Advisor|access-date=2019-06-15|archive-date=16 June 2019|archive-url=https://web.archive.org/web/20190616130710/https://www.techadvisor.co.uk/new-product/wearable-tech/mi-smart-band-4-3693779/|url-status=dead}} in Europe on 26 June 2019{{Cite web|url=https://twitter.com/XiaomiEspana/status/1138756333136732160|title=#MiSmartBand4, todo lo que necesitáis saber sobre ella está resumidito aquí mismo #XiaomiLoPetapic.twitter.com/vDgqXZwAAT|last=España|first=Xiaomi|date=2019-06-12|website=@XiaomiEspana|language=es|access-date=2019-06-15}} 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
- 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;{{Cite web|url=https://9to5google.com/2019/06/11/xiaomi-mi-band-4/|title=Xiaomi unveils Mi Band 4 w/ color display, NFC, more|last=Wilde|first=Damien|date=2019-06-11|website=9to5Google|language=en-US|access-date=2019-06-15}}{{Cite web|url=https://www.mi.com/shouhuan4nfc/specs/|title=小米手环4 NFC版 参数-小米商城|website=www.mi.com|access-date=2019-06-15}}
- 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
References
[https://www.smartgadgetwale.com/2021/04/mi-smart-band-4-a.html Mi Smart Band 4 full specification]
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