Xiaomi Smart Band 9 对比 Redmi Watch 4

	Selected: 搜寻: *输入型号搜索 Xiaomi Smart Band 9	Selected: 搜寻: *输入型号搜索 Redmi Watch 4
Price:	从 RM110 159	从 RM349 459
发布
Release Status	Release 2024, Aug 15	Release 2024, Jan 16
性能与续航
Memory		Unspecified storage
Card Slot		No
Battery	233mAh, Magnetic charging, Charging time: Approx. 1 hour, Typical usage time: Up to 21 days	Li-Po 470 mAh, non-removable battery
OS		HyperOS
显示屏
Display Type	AMOLED Touch Display, 60Hz High refresh rate	AMOLED, 600 nits (peak)
Display Size	1.62-inch, 192 x 490 pixels, Up to 1200 nits, adjustable	1.97 inches 450 x 390 pixels (~302 ppi density)
Display Features	2.5D reinforced glass case, More than 200 new fashionable watch faces	Always-on display
机身
Body Dimension		47.6 x 41.1 x 10.5 mm
Body Weight		31.5g
Body Type	5ATM water resistant	Plastic back, aluminum frame Waterproof (5ATM) 50m water resistant
Colors	Midnight Black, Glacier Silver, Mystic Rose, Arctic Blue	Obsidian Black, Silver Gray
摄像头
连接与通讯
Sim Card		No
Data Speed		No
WLAN		No
Bluetooth	Bluetooth 5.1 BLE	5.3, A2DP, LE
NFC		Yes (market/region dependent)
USB		No
传感器
Sensor	Accelerometer sensor / Gyroscope sensor / Optical heart rate sensor / Ambient light sensor	Accelerometer, heart rate, compass, gyro, SpO2
GPS		GPS, GLONASS, GALILEO, BDS, QZSS
音频
Loud Speaker		Yes
3.5mm Jack		No