Xiaomi Redmi Note 9T vs Samsung Galaxy S21 Specs Comparison

Compare phone and tablet specifications of up to three devices at once.

Display

Size:

6.5 inches

6.2 inches

Resolution:

2340 x 1080 pixels, 19.5:9 ratio, 395 PPI

2400 x 1080 pixels, 20:9 ratio, 424 PPI

Technology:

IPS LCD

Dynamic AMOLED

Refresh rate:

60Hz

120Hz (adaptive)

Screen-to-body:

83.65 %

86.06 %

Peak brightness:

1300 cd/m2 (nit)

Features:

Oleophobic coating, Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

HDR support, Scratch-resistant glass (Corning Gorilla Glass Victus), Ambient light sensor, Proximity sensor

Hardware

System chip:

MediaTek Dimensity 800U (7 nm)

Qualcomm Snapdragon 888 (5 nm)

Processor:

Octa-core, 2400 MHz, ARM Cortex-A76 and ARM Cortex-A55, 64-bit

Octa-core, 1x 2.84GHz Kryo 680 + 3x 2.42GHz Kryo 680 + 4x 1.80GHz Kryo 680, 64-bit

GPU:

Mali-G57 MC3

Adreno 660

RAM:

4GB LPDDR4

8GB LPDDR5

Internal storage:

64GB (UFS 2.1)

128GB (UFS 3.0), not expandable

Storage expansion:

microSDXC up to 512 GB

Device type:

Smartphone

OS:

Android (10)

Android (13, 12, 11), Samsung One UI

Battery

Capacity:

5000 mAh

4000 mAh

Type:

Not user replaceable

Li - Polymer, Not user replaceable

Charging:

Fast charging

Qualcomm Quick Charge 2.0, USB Power Delivery, Samsung Adaptive Fast Charging, Qi and Powermat wireless charging, Reverse wireless charging

Max charge speed:

Wired: 18.0W

Wired: 25.0W; Wireless: 15.0W

Camera

Rear:

Triple camera

Main camera:

48 MP (PDAF)

12 MP (OIS, PDAF)

Specifications:

F1.8; 1/2"; 0.8 μm

F1.8; 26 mm; 1/1.76"; 1.8 μm

Second camera:

2 MP (Macro)

64 MP (Telephoto, OIS, PDAF)

Specifications:

Aperture size: F2.4; Pixel size: 1.75 μm

Aperture size: F2.0; Focal Length: 29 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm

Third camera:

2 MP (Depth information)

12 MP (Ultra-wide, Autofocus)

Specifications:

Aperture size: F2.4; Pixel size: 1.75 μm

Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/2.55"; Pixel size: 1.4 μm

Flash:

LED

Video recording:

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (120 fps)

7680x4320 (8K UHD) (24 fps), 3840x2160 (4K UHD) (60 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)

Features:

OIS, HDR, Hyperlapse, Continuous autofocus, Video light, EIS

Front:

13 MP (Slow-motion videos)

10 MP (PDAF, HDR)

Video capture:

1920x1080 (Full HD)

3840x2160 (4K UHD) (60 fps)

Design

Dimensions:

6.37 x 3.04 x 0.36 inches (161.9 x 77.3 x 9.05 mm)

5.97 x 2.80 x 0.31 inches (151.7 x 71.2 x 7.9 mm)

Weight:

7.02 oz (199.0 g)

6.03 oz (171.0 g)

Materials:

Back: Plastic

Back: Plastic; Frame: Aluminum

Resistance:

Splash

Water, Dust; IP68

Biometrics:

2D Face unlock, Fingerprint (touch)

2D Face unlock, Ultrasonic in-screen fingerprint

Keys:

Right: Volume control, Lock/Unlock key

Colors:

Nightfall black, Daybreak purple

Phantom pink, Violet, Gray, White

Cellular

5G:

Sub-6

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), 12(700 a), 17(700 b), 18(800 Lower), 19(800 Upper), 20(800 DD), 26(850+), 28(700 APT), 32(1500 L-band)

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)