Xiaomi Redmi S2 vs Xiaomi Mi Mix 4 Specs Comparison

Availability

Officially announced
	Aug 10, 2021

Design

Dimensions
6.33 x 3.04 x 0.32 inches 160.73 x 77.26 x 8.1 mm	6.40 x 2.97 x 0.31 inches 162.6 x 75.4 x 8 mm
Weight
6.00 oz / 170.0 g	7.94 oz / 225.0 g
Materials
Back: Plastic	Back: Ceramic Frame: Aluminum
Resistance
	Splash, Dust; IP53
Biometrics
Fingerprint (touch)	Optical in-screen fingerprint
Keys
Right: Volume control, Lock/Unlock key	Right: Volume control, Lock/Unlock key
Colors
Gold, Silver, Pink	Ceramic Black, Ceramic White, Shadow Gray

Display

Size
6.0-inch, 74.58% screen-to-body	6.7-inch, 87.59% screen-to-body
Type
LCD	AMOLED, 120Hz, HDR
Resolution
1440x720px, 18:9 ratio, 269 PPI	2400x1080px, 20:9 ratio, 395 PPI
Protection
	Corning Gorilla Glass Victus

Hardware

System chip
Snapdragon 625 MSM8953 (14 nm)	Snapdragon 888+ SM8350-AC (5 nm)
Processor
Octa-core 2000 MHz ARM Cortex-A53	Octa-core Kryo 680 Prime
GPU
Adreno 506	Adreno 660
Memory
3GB (LPDDR3)/32GB	8GB (LPDDR5)/128GB (UFS 3.1) 8GB/256GB 12GB/256GB 12GB/512GB
Storage expansion
microSDXC up to 256 GB	not expandable
OS
Android (9.0 Pie, 8.1 Oreo)	Android (11)

Battery

Type
3080 mAh	4500 mAh, Li - Ion
Charging
	Fast charging Qi wireless charging, Reverse wireless charging
Charge speed
	Wired: 120.0W Wireless: 50.0W

Camera

Rear
Dual camera	Triple camera
Main camera
12 MP (PDAF) Aperture size: F2.2 Pixel size: 1.25 μm	108 MP (OIS, Laser and PDAF) Aperture size: F1.9 Focal length: 24 mm Sensor size: 1/1.33" Pixel size: 0.8 μm
Second camera
5 MP (Depth information)	13 MP (Ultra-wide) Aperture size: F2.2 Focal Length: 12 mm Sensor size: 1/3.06" Pixel size: 1.12 μm
Third camera
	8 MP (Periscope, OIS, PDAF) Optical zoom: 5.0x
Flash
LED	Dual LED
Video recording
1080p (30 fps), 720p (30 fps) EIS, Video calling, Video sharing	8K UHD (24 fps), 4K UHD (60 fps), 1080p (480 fps), 720p (480 fps) HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking
Front
16 MP (Flash, HDR) Video capture: 1080p	20 MP (Under-screen) Video capture: 1080p

Connectivity & Features

Bluetooth
4.2	5.2
WLAN
b,g,n Hotspot, Wi-Fi Direct 802.11 b, g, n	a,b,g,n,ac,Wi-Fi 6 MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax
USB
microUSB, USB 2.0	Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor	Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor
Location
GPS, A-GPS, Glonass, BeiDou	GPS, A-GPS, Glonass, Galileo, BeiDou, QZSS, NavIC, Cell ID, Wi-Fi positioning
Other
Infrared, VoIP, Tethering, Computer sync, OTA sync	NFC

Multimedia

Headphones
3.5mm jack	No 3.5mm jack
Speakers
Earpiece, Loudspeaker	Earpiece, Multiple speakers
Features
Album art cover, Background playback
Screen mirroring
Wireless screen share
Additional microphone(s)
Noise cancellation

Cellular

5G Bands
	n1, n3, n5, n8, n28, n41, n77, n78, n79, SA, NSA, Sub-6
4G (FDD) Bands
1, 3, 4, 5, 7, 8, 20	1, 2, 3, 4, 5, 8, 12, 17, 18, 19, 20, 26, 28
4G (TDD) Bands
38, 40	34, 38, 39, 40, 41, 42
3G Bands
5, 8, 2, 1	1, 2, 4, 5, 6, 8, 19
Data Speed
LTE, HSPA, HSUPA	LTE-A, HSDPA+ (4G) 42.2 Mbit/s
Dual SIM
Yes	Yes
SIM type
Nano SIM	Nano SIM
HD Voice
	Yes
VoLTE
	Yes

Phone Features

Notifications
Haptic feedback, Music ringtones, Vibration, Flight mode, Silent mode, Speakerphone
Other features
Voice dialing, Voice commands, Voice recording

Alternative variants

With 256GB internal storage

Memory	256GB

With 12GB RAM and 256GB internal storage

Memory	12GB/256GB

With 12GB RAM and 512GB internal storage

Memory	12GB/512GB

Links

Full specifications
Xiaomi Redmi S2 Specs	Xiaomi Mi Mix 4 Specs