Xiaomi Redmi Note 9S 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 Note 9S | Samsung Galaxy S21+ |
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Released
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Apr 07, 2020
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Released
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Jan 29, 2021
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6.7-inch · 2400x1080px
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6.7-inch · 2400x1080px
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Quad camera
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Triple camera
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4GB · 64GB
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8GB · 128GB
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5020 mAh
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4800 mAh
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| Check prices | |
| Check Accessories | Check Accessories |
Availability
| Officially announced | |
|---|---|
| Mar 23, 2020 | Jan 14, 2021 |
| Prices (MSRP) | |
| 4GB/64GB - $249 | 8GB/128GB - $1000 8GB/256GB - $1050 |
Design
| Dimensions | |
|---|---|
| 6.53 x 3.02 x 0.35 inches 165.75 x 76.68 x 8.8 mm |
6.35 x 2.98 x 0.31 inches 161.5 x 75.6 x 7.8 mm |
| Weight | |
| 7.37 oz / 209.0 g | 7.13 oz / 202.0 g Europe version - 200 g |
| Materials | |
| Back: Glass (Corning Gorilla Glass 5) | Back: Glass (Corning Gorilla Glass Victus) Frame: Aluminum |
| Resistance | |
| Water, Dust; IP68 | |
| Biometrics | |
| Fingerprint (touch) | 2D Face unlock, Ultrasonic in-screen fingerprint |
| Keys | |
| Right: Volume control, Lock/Unlock key | Right: Volume control, Lock/Unlock key |
| Colors | |
| Interstellar grey, Aurora blue, Glacier white | Phantom silver, Black, Violet |
Display
| Size | |
|---|---|
| 6.7-inch, 84.42% screen-to-body | 6.7-inch, 88.63% screen-to-body |
| Type | |
| IPS LCD, HDR | Dynamic AMOLED, 120Hz, HDR, 1300 nits |
| Resolution | |
| 2400x1080px, 20:9 ratio, 395 PPI | 2400x1080px, 20:9 ratio, 393 PPI |
| Protection | |
| Corning Gorilla Glass 5 | Corning Gorilla Glass Victus |
PhoneArena Display Test
| Bright Max (20% APL) | |
|---|---|
| Untested | Untested |
| Bright Min | |
| Untested | 1.5 (Good) |
Learn more on our
PhoneArena Display Test Results page.
Hardware
| System chip | |
|---|---|
| Snapdragon 720G SM7125 (8 nm) | Snapdragon 888 (5 nm) Europe version - Exynos 2100 S5E9840 |
| Processor | |
| Octa-core 2300 MHz Kryo 465 |
Octa-core 1x2.84GHz Kryo 680 3x2.42GHz Kryo 680 4x1.80GHz Kryo 680 Europe version - Octa-core, 1x2.91GHz Cortex-X1, 3x2.81GHz Cortex-A78, 4x2.2GHz Cortex-A55 |
| GPU | |
| Adreno 618 | Adreno 660 Europe version - Mali-G78 MP14 |
| Memory | |
| 4GB (LPDDR4)/64GB 6GB/128GB |
8GB (LPDDR5)/128GB (UFS 3.0) 8GB/256GB |
| Storage expansion | |
| microSDXC up to 512 GB | not expandable |
| OS | |
| Android (11, 10) | Android (13, 12, 11) |
Battery
| Type | |
|---|---|
| 5020 mAh, Li - Polymer | 4800 mAh, Li - Polymer |
| Charging | |
| Fast charging | Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging Qi and Powermat wireless charging, Reverse wireless charging |
| Charge speed | |
| Wired: 25.0W Wireless: 15.0W |
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Battery Life Estimate
Untested
Browsing
Untested
Video
Untested
Gaming
Untested
Battery Life Estimate
5h 26min
Browsing
10h 50min
Video
8h 27min
Gaming
8h 36min
Camera
| Rear | |
|---|---|
| Quad camera | Triple camera |
| Main camera | |
| 48 MP (PDAF) Aperture size: F1.8 Sensor size: 1/2" Pixel size: 0.8 μm |
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 Pixel size: 1.12 μm |
12 MP (Ultra-wide, PDAF) Aperture size: F1.8 Focal Length: 13 mm Sensor size: 1/2.55" Pixel size: 1.4 μm |
| Third camera | |
| 5 MP (Macro, Autofocus) Aperture size: F2.4 Pixel size: 1.12 μm |
64 MP (Telephoto, OIS, PDAF) Aperture size: F2.0 Focal Length: 29 mm Sensor size: 1/2.55" Pixel size: 0.8 μm |
| Fourth camera | |
| 2 MP (Depth information) Aperture size: F2.4 Pixel size: 1.75 μm |
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| Flash | |
| Dual LED | LED |
| Video recording | |
| 4K UHD (30 fps), 1080p (120 fps), 720p (960 fps) | 8K UHD (24 fps), 4K UHD (60 fps), 1080p (240 fps), 720p (960 fps) OIS, HDR, Hyperlapse, Video light, EIS |
| Front | |
| 16 MP (HDR, Slow-motion videos) Video capture: 1080p |
10 MP (PDAF, HDR) Video capture: 4K UHD (60 fps) |
Connectivity & Features
| Bluetooth | |
|---|---|
| 5.0 | 5.0 |
| WLAN | |
| dual-band Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac | Wi-Fi 6,dual-band MIMO, Wi-Fi Direct, Hotspot 802.11 a, b, g, n, ac, ax |
| USB | |
| Type-C | Type-C, USB 3.2 |
| Sensors | |
| Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor | Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor |
| Hearing aid compatible | |
| M3/T3 | |
| Location | |
| GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning | GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning |
| Other | |
| 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 | |
Cellular
| 5G Bands | |
|---|---|
| n2, n5, n12, n25, n41, n66, n71, n77, n260, n261, SA, NSA, Sub-6, mmWave | |
| LTE Bands | |
| 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 66, 71 | |
| TDD Bands | |
| 38, 40 | 38, 39, 40, 41, 46, 48 |
| 3G Bands | |
| 1, 2, 4, 5, 8 | 1, 2, 4, 5, 8 |
| 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 |
| VoLTE | |
| Yes | |
Regulatory Approval
| FCC approval | |
|---|---|
| Date approved: Dec 18, 2020 FCC ID value: A3LSMG996U | |
| Measured SAR | |
| Head: 0.65 W/kg Body: 0.95 W/kg Simultaneous Transmission: 1.59 W/kg Wireless Router: 1.04 W/kg Phablet: 3.97 W/kg |
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