Xiaomi Redmi 9 vs Samsung Galaxy S21 Specs Comparison
Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.
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Xiaomi Redmi 9 | Samsung Galaxy S21 |
Released
·
Jun 18, 2020
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Released
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Jan 29, 2021
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6.5-inch · 2340x1080px
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6.2-inch · 2400x1080px
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Quad camera
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Triple camera
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3GB · 32GB
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8GB · 128GB
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5020 mAh
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4000 mAh
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Check prices | Check prices |
Design
Dimensions | |
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6.43 x 3.03 x 0.36 inches 163.32 x 77.01 x 9.1 mm |
5.97 x 2.80 x 0.31 inches 151.7 x 71.2 x 7.9 mm |
Weight | |
6.98 oz (198.0 g) | 6.03 oz (171.0 g) |
Materials | |
Back: Plastic Frame: Aluminum |
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Resistance | |
Water, Dust; IP68 | |
Biometrics | |
2D Face unlock, Fingerprint (touch) | 2D Face unlock, Ultrasonic in-screen fingerprint |
Keys | |
Right: Volume control, Lock/Unlock key | Right: Volume control, Lock/Unlock key |
Colors | |
Carbon gray, Sunset purple, Ocean green | Phantom pink, Violet, Gray, White |
Display
Size | |
---|---|
6.5-inch | 6.2-inch |
Resolution | |
2340x1080px, 19.5:9 ratio, 395 PPI | 2400x1080px, 20:9 ratio, 424 PPI |
Technology | |
IPS LCD | Dynamic AMOLED |
Refresh rate | |
120Hz (adaptive) | |
Screen-to-body | |
83.27 % | 86.06 % |
Peak brightness | |
1300 cd/m2 (nit) | |
Features | |
Oleophobic coating, Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor | HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor |
Hardware
System chip | |
---|---|
MediaTek Helio G80 (12 nm) | Qualcomm Snapdragon 888 (5 nm) |
Processor | |
Octa-core 2000 MHz Arm Cortex-A75 and Arm Cortex-A55 |
Octa-core 1x 2.84GHz Kryo 680 + 3x 2.42GHz Kryo 680 + 4x 1.80GHz Kryo 680 |
GPU | |
Mali G52 MC2 | Adreno 660 |
RAM | |
3GB (LPDDR4) | 8GB (LPDDR5) |
Internal storage | |
32GB (eMMC 5.1) | 128GB (UFS 3.0) |
Storage expansion | |
microSDXC | not expandable |
OS | |
Android | Android (13, 12, 11), Samsung One UI |
Battery
Capacity | |
---|---|
5020 mAh | 4000 mAh |
Type | |
Li - Polymer | |
Charging | |
Qualcomm Quick Charge 3.0 | Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging |
Charge speed | |
Wired: 18.0W | Wired: 25.0W Wireless: 15.0W |
Battery Life Estimate
Untested
Browsing
Untested
Video
9h 15min
Gaming
7h 3min
Battery Life Estimate
4h 28min
Browsing
7h 47min
Video
7h 36min
Gaming
7h 9min
Camera
Rear | |
---|---|
Quad camera | Triple camera |
Main camera | |
13 MP (PDAF) Aperture size: F2.2 |
12 MP (OIS, PDAF) Aperture size: F1.8 Focal length: 26 mm Sensor size: 1/1.76" Pixel size: 1.8 μm |
Second camera | |
8 MP (Ultra-wide) Aperture size: F2.2 | 12 MP (Ultra-wide, Autofocus) Aperture size: F2.2 Focal Length: 13 mm Sensor size: 1/2.55" Pixel size: 1.4 μm |
Third camera | |
5 MP (Macro) Aperture size: F2.4 |
64 MP (Telephoto, OIS, PDAF) Aperture size: F2.0 Focal Length: 29 mm Sensor size: 1/1.7" Pixel size: 0.8 μm |
Fourth camera | |
2 MP (Depth information) | |
Flash | |
LED | LED |
Video recording | |
1920x1080 (Full HD) | 7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps) OIS, HDR, Hyperlapse, Continuous autofocus, Video light, EIS |
Front | |
8 MP (HDR), Video capture: 1920x1080 (Full HD) | 10 MP (PDAF, HDR), Video capture: 3840x2160 (4K UHD) (60 fps) |
Connectivity & Features
Bluetooth | |
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5.0 | 5.0 |
WLAN | |
802.11 b,g,n Wi-Fi Direct, Hotspot | 802.11 a,b,g,n,ac,ax(Wi-Fi 6),dual-band MIMO, Wi-Fi Direct, Hotspot |
USB | |
Type-C, USB 2.0 | Type-C, USB 3.2 |
Hearing aid compatible | |
M3/T3 | |
Location | |
GPS, A-GPS, Glonass, BeiDou, Cell ID, Wi-Fi positioning | GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning |
Sensors | |
Accelerometer, Gyroscope, Compass | Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer |
Other | |
NFC, Infrared | NFC, ANT+ |
Multimedia
Headphones | |
---|---|
3.5mm jack | No 3.5mm jack |
Speakers | |
Earpiece, Loudspeaker | Earpiece, Multiple speakers |
Features | |
32-Bit DAC, Dolby Atmos, aptX, Dolby Digital, Dolby Digital Plus | |
Screen mirroring | |
Wireless screen share | Wireless screen share |
Radio | |
FM | FM, Stereo, RDS |
Additional microphone(s) | |
Noise cancellation | Noise cancellation, Video recording |
Cellular
5G | |
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Bands n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave | |
4G (FDD) | |
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT) | Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 14(700 PS), 18(800 Lower), 19(800 Upper), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 30(2300 WCS), 66(AWS-3), 71(600) |
4G (TDD) | |
Bands 38(2600), 40(2300), 41(2600+) | Bands 38(2600), 39(1900+), 40(2300), 41(2600+), 46, 48(3600) |
3G | |
Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900) | Bands 1(2100), 2(1900), 4(1700/2100), 5(850), 8(900) |
Data Speed | |
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s | LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS |
Dual SIM | |
Yes | |
SIM type | |
Nano SIM | Nano SIM |
HD Voice | |
Yes | |
VoLTE | |
Yes |
Regulatory Approval
FCC approval | |
---|---|
Date approved: Dec 08, 2020 FCC ID value: A3LSMG991U | |
Measured SAR | |
Head: 0.36 W/kg Body: 1.08 W/kg Simultaneous Transmission: 3.96 W/kg Wireless Router: 1.09 W/kg Phablet: 2.49 W/kg |
Buyers information
MSRP | |
---|---|
$ 800 | |
In The Box | |
10W Charger, TPU case, USB Type-C cable, SIM eject tool, Warranty card, User guide | C to C Data Cable, Ejection Pin |
Availability
Officially announced | |
---|---|
Jan 14, 2021 |
Alternative variants
with 64GB storage
RAM | 4GB |
---|---|
Internal storage | 64GB |
with 256GB storage
Internal storage | 256GB |
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for Europe
System chip | Samsung Exynos 2100 (5 nm) |
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Processor |
Octa-core 2900 MHz 1x 2.91GHz Cortex-X1 + 3x 2.81GHz Cortex-A78 + 4x 2.2GHz Cortex-A55 |
GPU | Mali G78 MP14 |
Weight | 5.96 oz (169.0 g) |
5G | Bands SA, NSA, Sub-6 |
FCC approval |
Date approved: Dec 18, 2020 FCC ID value: A3LSMG991B |
Measured SAR |
Head: 0.42 W/kg Body: 0.94 W/kg Simultaneous Transmission: 3.96 W/kg Wireless Router: 1.34 W/kg Phablet: 2.37 W/kg |
Links
Full specifications | |
---|---|
Xiaomi Redmi 9 Specs | Samsung Galaxy S21 Specs |
PhoneArena Review | |
Xiaomi Redmi 9 Review | Samsung Galaxy S21 Review |
User Reviews | |
Xiaomi Redmi 9 User Reviews | Samsung Galaxy S21 User Reviews |