Samsung Galaxy A51 vs OPPO Reno2 Z

$290 VIEW ON eBay
$519 VIEW ON AMAZON

Display

Size

6.5 inches
6.5 inches

Resolution

2400 x 1080 pixels, 20:9 ratio,
405 PPI
2340 x 1080 pixels, 19.5:9 ratio,
396 PPI

Technology

Super AMOLED
AMOLED

Screen-to-body

87.37 %
84.69 %

Features

Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 5), Ambient light sensor, Proximity sensor

Hardware & Performance

System chip

Samsung Exynos 9611
MediaTek Helio P90

Processor

Octa-core, 2300 MHz, ARM Cortex-A73 and ARM Cortex-A53, 64-bit, 10 nm
Octa-core, 2200 MHz, Arm Cortex-A75 and Arm Cortex-A55, 64-bit, 12 nm

GPU

Mali-G72 MP3
PowerVR GM9446

RAM

4GB LPDDR4
8GB LPDDR4

Internal storage

128GB
128GB

Storage expansion

microSDXC up to 512 GB
microSDXC up to 256 GB

OS

Android (10), Samsung One UI
Android (9.0 Pie), OPPO ColorOS UI

Battery

Capacity

4000 mAh
4000 mAh

Type

Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable

Charging

Fast charging
OPPO VOOC

Camera

Rear

Quad camera
Quad camera

Main camera

48 MP (PDAF)
48 MP (PDAF)

Specifications

Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F1.7; Sensor size: 1/2"; Pixel size: 0.8 μm

Second camera

12 MP (Ultra-wide)
8 MP (Ultra-wide)

Specifications

Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm
Aperture size: F2.2; Focal Length: 13 mm; Sensor size: 1/4"; Pixel size: 1.12 μm

Third camera

5 MP (Macro)
2 MP (Black and White)

Specifications

Aperture size: F2.4; Focal Length: 40 mm
Aperture size: F2.4; Sensor size: 1/5"; Pixel size: 1.75 μm

Fourth camera

5 MP (Depth information)
2 MP (Depth information)

Specifications

Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm
Aperture size: F2.4; Sensor size: 1/5"; Pixel size: 1.75 μm

Video recording

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (240 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (60 fps)

Features

Hyperlapse, EIS
Time-lapse video, EIS

Front

32 MP (HDR)
16 MP (Pop-up)

Design

Dimensions

6.24 x 2.90 x 0.31 inches (158.5 x 73.6 x 7.9 mm)
6.37 x 2.98 x 0.34 inches (161.8 x 75.8 x 8.7 mm)

Weight

6.07 oz (172 g)
the average is 6.4 oz (183 g)
6.88 oz (195 g)
the average is 6.4 oz (183 g)

Materials

Back: Plastic; Frame: Plastic
Back: Glass (Corning Gorilla Glass 5); Frame: Aluminum

Biometrics

2D Face unlock, In-screen fingerprint
In-screen fingerprint

Colors

Prism Crush black, Prism Crush white, Prism Crush pink, Prism Crush blue
Nebula green, Luminous black, Sky white

Cellular

LTE (FDD)

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 26(850+), 28(700 APT), 66(AWS-3)
Bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800 DD), 28(700 APT)

LTE (TDD)

Bands 38(2600), 40(2300), 41(2600+)
Bands 38(2600), 40(2300), 41(2600+)

UMTS

850, 900, 1700/2100, 1900, 2100 MHz
850, 900, 2100 MHz

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

Dual SIM

Yes
Yes

SIM type

Nano SIM
Nano SIM

Multimedia

Headphones

3.5mm jack
3.5mm jack

Features

Dolby Atmos
 

Connectivity & Features

Bluetooth

5.0
5.0

Wi-Fi

802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB

Type-C (reversible), USB 2.0
Type-C (reversible)

Features

Charging, OTG
Charging, OTG

Sensors

Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Accelerometer, Gyroscope, Compass, Hall (for flip covers)

Other

NFC, ANT+
NFC

Shopping information

In The Box

 
Adapter, Headset, Micro USB Cable, Booklet with Warranty Card, Quick Start Guide, SIM Card Tool, Protective Film (pre-applied), Case
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