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Samsung Galaxy M51
Samsung · phone

Galaxy M51

Oppo A11s
Oppo · phone

A11s

3

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Launch

2
Announced
2020-08-31
2021-12-27
Status
Available
Available

Network

4
2G bands
  • R-GSM-900
  • PCS-1900
  • DCS-1800
  • E-GSM-900
  • GSM-850
  • P-GSM-900
  • T-GSM-900
  • P-GSM-900
  • GSM-850
  • DCS-1800
  • T-GSM-900
  • R-GSM-900
  • E-GSM-900
3G bands
  • B25 (1900 MHz)
  • B10 (1700 MHz)
  • B1 (2100 MHz)
  • B2 (1900 MHz)
  • B4 (1700 MHz)
  • B5 (850 MHz)
  • B26 (850 MHz)
  • B8 (900 MHz)
  • B8 (900 MHz)
  • B26 (850 MHz)
  • B5 (850 MHz)
4G bands
  • B1 (2100 MHz)
  • B3 (1800 MHz)
  • B38 (2600 MHz)
  • B12 (700 MHz)
  • B7 (2600 MHz)
  • B26 (850 MHz)
  • B40 (2300 MHz)
  • B5 (850 MHz)
  • B38 (2600 MHz)
  • B40 (2300 MHz)
  • B41 (2500 MHz)
  • B5 (850 MHz)
  • B8 (900 MHz)
  • B1 (2100 MHz)
  • B3 (1800 MHz)
  • B39 (1900 MHz)
SIM
  • Dual SIM (Nano-SIM)
  • Dual SIM (Embedded-SIM)
  • Dual SIM (Nano-SIM)

Body

8
Height
163.9 mm
163.9 mm
Width
76.3 mm
75.1 mm
Thickness
9.5 mm
8.4 mm
Weight
213 g
186 g
Colors
  • Electric Blue
  • Celestial Black
  • White
  • White
  • Gray
Back material
Plastic
Plastic
Frame material
Plastic
Glass
QWERTY keyboard
✕ No
✕ No

Platform

2
OS
Android 10
Android 10
Chipset
Snapdragon 730G
Snapdragon 460 (11 nm)

Memory

3
Memory
  • 6GB RAM, 128GB
  • 8GB RAM, 128GB
  • 4GB RAM, 64GB
  • 4GB RAM, 128GB
  • 8GB RAM, 128GB
Card slot
microSDXC
microSDXC
Dedicated card slot
✓ Yes
✓ Yes

Display

9
Size
6.7"
6.5"
Resolution width
1080 px
720 px
Resolution height
2400 px
1600 px
Pixel density
393 ppi
270 ppi
High refresh rate
✕ No
✕ No
Display area
108.4 cm²
102 cm²
Screen-to-body ratio
86.7%
82.9%
Technology
Super AMOLED
IPS LCD
Refresh rate
–
90 Hz

Main camera

5
Cameras
  • 64MP, f/1.7, wide, OIS, PDAF
  • 12MP, f/3.4, ultrawide
  • 5MP, f/2.4, depth
  • 5MP, macro
  • 13MP, wide, PDAF
  • 2MP, depth
  • 2MP, f/2.4, macro
Flash
LED
LED
Video
  • 4K@30/60fps
  • 1080p@30fps
1080p@30fps
HDR
✓ Yes
✓ Yes
Panorama
✓ Yes
✓ Yes

Selfie camera

4
Cameras
  • 32MP, wide
  • 8MP, f/1.7, wide
Video
  • 4K@30/60fps
  • 1080p@30fps
1080p@30fps
HDR
✓ Yes
✓ Yes
Pop-up camera
✕ No
✕ No

Sound

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

Sensors

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

Connectivity

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

Battery

5
Capacity
7000 mAh
5000 mAh
Type
Li-Po
Li-Po
Charging power
25 W
18 W
Removable
✕ No
✕ No
Wireless charging
✕ No
✕ No