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Xiaomi 12X
Xiaomi · phone

12X

Samsung Galaxy M31
Samsung · phone

Galaxy M31

3

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Launch

2
Announced
2021-12-28
2020-02-25
Status
Available
Available

Network

5
2G bands
  • GSM-850
  • P-GSM-900
  • E-GSM-900
  • DCS-1800
  • PCS-1900
  • E-GSM-900
  • T-GSM-900
  • P-GSM-900
  • R-GSM-900
  • DCS-1800
  • GSM-850
3G bands
  • B19 (800 MHz)
  • B5 (850 MHz)
  • B8 (900 MHz)
  • B4 (1700 MHz)
  • B2 (1900 MHz)
  • B1 (2100 MHz)
  • B26 (850 MHz)
  • B2 (1900 MHz)
  • B25 (1900 MHz)
  • B5 (850 MHz)
  • B8 (900 MHz)
4G bands
  • B1 (2100 MHz)
  • B2 (1900 MHz)
  • B3 (1800 MHz)
  • B4 (1700 MHz)
  • B5 (850 MHz)
  • B7 (2600 MHz)
  • B8 (900 MHz)
  • B12 (700 MHz)
  • B28 (700 MHz)
  • B3 (1800 MHz)
  • B7 (2600 MHz)
  • B2 (1900 MHz)
  • B12 (700 MHz)
  • B4 (1700 MHz)
  • B66 (1700 MHz)
  • B38 (2600 MHz)
5G bands
  • n1 (2100 MHz)
  • n3 (1800 MHz)
  • n5 (850 MHz)
  • n7 (2600 MHz)
  • n8 (900 MHz)
  • n20 (800 MHz)
  • n28 (700 MHz)
  • n38 (2600 MHz)
–
SIM
  • Dual SIM (Nano-SIM)
  • Dual SIM (Nano-SIM)

Body

9
Form factor
Bar
–
Height
152.7 mm
159.2 mm
Width
69.9 mm
75.1 mm
Thickness
8.2 mm
8.9 mm
Weight
176 g
191 g
Colors
  • Gray
  • Blue
  • Purple
  • Ocean Blue
  • Space Black
  • Red
QWERTY keyboard
✕ No
✕ No
Back material
–
Plastic
Frame material
–
Plastic

Platform

2
OS
Android 11, MIUI 13
Android 10
Chipset
Snapdragon 870 5G
Exynos 9611

Memory

3
Memory
  • 8GB RAM, 128GB
  • 8GB RAM, 256GB
  • 12GB RAM, 256GB
  • 6GB RAM, 64GB
  • 6GB RAM, 128GB
  • 8GB RAM, 128GB
Dedicated card slot
✕ No
✓ Yes
Card slot
–
microSDXC

Display

10
Size
6.28"
6.4"
Resolution
FHD
–
Resolution width
1080 px
1080 px
Resolution height
2400 px
2340 px
Pixel density
419 ppi
403 ppi
Refresh rate
120 Hz
–
High refresh rate
✓ Yes
✕ No
Display area
95.2 cm²
100.5 cm²
Screen-to-body ratio
89.2%
84.1%
Technology
AMOLED
Super AMOLED

Main camera

5
Cameras
  • 50MP, f/1.9, wide, OIS, PDAF
  • 13MP, f/2.4, ultrawide
  • 5MP, f/2.4
  • 64MP, wide, PDAF
  • 8MP, ultrawide
  • 5MP, f/2.4, depth
  • 5MP, macro
Flash
Dual-LED dual-tone
LED
Video
  • 8K@24fps
  • 4K@30/60fps
  • 1080p@30/120/240/960fps
  • 1080p@30fps
  • 4K@30fps
HDR
✓ Yes
✓ Yes
Panorama
✓ Yes
✓ Yes

Selfie camera

4
Cameras
  • 32MP, f/2.5, wide
  • 32MP, wide
Video
  • 1080p@30/60fps
  • 720p@120fps
  • 1080p@30fps
  • 4K@30fps
HDR
✓ Yes
✓ Yes
Pop-up camera
✕ No
✕ No

Sound

3
3.5mm jack
✕ No
✓ Yes
Stereo speakers
✓ Yes
✕ No
Loudspeaker
✓ Yes
✓ Yes

Sensors

7
Fingerprint
under display
rear-mounted
Gyroscope
✓ Yes
✓ Yes
Compass
✓ Yes
✓ Yes
Barometer
✕ No
✕ No
Heart rate
✕ No
✕ No
Accelerometer
✓ Yes
✓ Yes
Proximity
✓ Yes
✓ Yes

Connectivity

7
Wi-Fi
Wi‑Fi 6 (802.11ax) (600–9608 Mbit/s)
  • 802.11g (6–54 Mbit/s)
  • Wi‑Fi 6 (802.11ax) (600–9608 Mbit/s)
  • Wi‑Fi 4 (802.11n) (72–600 Mbit/s)
  • Wi‑Fi 6E (802.11ax) (600–9608 Mbit/s)
  • 802.11b (1–11 Mbit/s)
  • Wi‑Fi 5 (802.11ac) (433–6933 Mbit/s)
  • 802.11a (6–54 Mbit/s)
Bluetooth
Bluetooth 5.2
Bluetooth 5.0
USB
USB Type-C 2.0
USB Type-C 2.0
GPS
✓ Yes
✓ Yes
NFC
✕ No
✓ Yes
Infrared port
✓ Yes
✕ No
FM radio
✕ No
✓ Yes

Battery

5
Capacity
4500 mAh
6000 mAh
Type
Li-Po
Li-Po
Charging power
67 W
15 W
Removable
✕ No
✕ No
Wireless charging
✕ No
✕ No