What are the new features in Xiaomi Mi Band 4?

MI Band 4:-

Weight :22.1g

Water Resistance Rating: 5 ATM

Display Type: AMOLED

Screen Size: 0.95"

Resolution: 120 x 240 RGB

Colour Depth: 24bit

Screen Brightness: Up to 400 nits (max brightness), brightness adjustable

Touchscreen type: On-cell capacitive touchscreen

Screen protection: 2.5D tempered glass with anti-fingerprint coating

Button: Single touch button (wake up, go back)

Wrist strap type: Removable wrist strap
(Mi Smart Band 4 is compatible with Mi Band 3 straps)

Wristband width: 18mm

Wrist strap material: Thermoplastic polyurethane

Adjustable wrist strap length: 155-216mm

RAM: 512KB

ROM: 16MB

Sensors: 3-axis accelerometer + 3-axis gyroscope;
PPG heart rate sensor;
Capacitive proximity sensor

Wireless connectivity: BT5.0 BLE

Battery: LiPo, 135mAh

Charging Type: 2Pin Pogo Pin

Charging time: <=2 hours

Standby time: Up to 20 days

Motor Type: Rotor

Body material: Polycarbonate

App: Mi Fit

System requirements: Android 4.4, iOS 9.0 or above

Features

Sport Functions: 6 workout modes: Treadmill, exercise, outdoor running,
cycling, walking, pool swimming; Count steps, distance,
and calories burned

Health monitoring: Workout completion notifications, goal setting, sleep monitoring,
heart rate monitoring, all-day heart rate checking, resting
heart rate, heart rate chart, idle alerts

Other features: Allarme, sensore di prossimità, watch face preimpostato, watch face personalizzabile,
schermo di blocco, timer, cronometro, allarme e notifiche del telefono, chiamate in entrata
, notifiche dei messaggi, notifiche del calendario, notifiche delle app,
previsioni del tempo, Trova il mio telefono, sblocco del telefono, notifica degli eventi,
Modalità notturna, modalità non disturbare (funziona anche senza telefono), musica
controlli sulla banda, trasmissione Bluetooth, visualizzazione del livello della batteria, diversi
modi di indossare, aggiornamenti OTA

Spero che questo risulti utile..