Oppo Reno2 vs Samsung Galaxy A51

Compare recorded specifications, size and practical differences.

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Key differences

Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

  • Weight

    Galaxy A51: 17 g lighter

    Reno2:
    189 g
    Galaxy A51:
    172 g
  • Chipset

    Reno2:
    Qualcomm SDM730 Snapdragon 730G (8 nm)
    Galaxy A51:
    Exynos 9611 (10nm)
  • Depth

    Galaxy A51: 1.6 mm thinner

    Reno2:
    9.5 mm
    Galaxy A51:
    7.9 mm

Physical size

Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

  1. 1. Reno2

    Height:
    160 mm
    Width:
    74.3 mm
    Depth:
    9.5 mm +1.6 mm versus Galaxy A51
  2. 2. Galaxy A51

    Height:
    158.5 mm
    Width:
    73.6 mm
    Depth:
    7.9 mm

Weight

Bars start at zero and share a scale within this chart.

  1. 1. Reno2

    189 g

    +17 g versus Galaxy A51

  2. 2. Galaxy A51

    172 g

Screen size

Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

  1. 1. Reno2

    Screen diagonal:
    6.5 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    102 cm²
  2. 2. Galaxy A51

    Screen diagonal:
    6.5 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    102 cm²

Memory variants

Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

Recorded RAM for Reno2, Galaxy A51, compared at the same storage capacity.
StorageReno2Galaxy A51
64 GB Not recorded 4 GB RAM
128 GB Recorded for all phones 8 GB RAM 4 / 6 / 8 GB RAM Alternative RAM configurations
256 GB 8 GB RAM Not recorded

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. Reno2

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses shared SIM slot)

2. Galaxy A51

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 1 TB (dedicated slot)

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded battery capacity

Bars start at zero and share a scale within this chart.

  1. 1. Reno2

    4000 mAh

  2. 2. Galaxy A51

    4000 mAh

Specifications

Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

1. Reno22. Galaxy A51

Everyday essentials
Everyday essentials — specifications for Reno2, Galaxy A51.
SpecificationReno2Galaxy A51
Dimensions (HxWxD)
  • 160 Х 74.3 Х 9.5 mm
  • 158.5 Х 73.6 Х 7.9 mm
Weight
  • 189 g
  • 172 g
Technology
  • AMOLED
  • Super AMOLED
Screen size
  • 6.5" inch
  • 6.5" inch
Screen resolution
  • 1080 x 2400 px
  • 1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128GB 8GB RAM
  • 256GB 8GB RAM
  • 64GB 4GB RAM
  • 128GB 4GB RAM
  • 128GB 6GB RAM
  • 128GB 8GB RAM
Memory card support
  • microSD
  • up to 256 GB (uses shared SIM slot)
  • microSD
  • up to 1 TB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4000 mAh
  • Non-removable Li-Po
  • 4000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 9.0 (Pie); ColorOS 6.1
  • Android 10.0; One UI 2
Chipset
  • Qualcomm SDM730 Snapdragon 730G (8 nm)
  • Exynos 9611 (10nm)
NFC
  • Yes
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Reno2, Galaxy A51.
SpecificationReno2Galaxy A51
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 104.1 cm2
  • 102.0 cm2
Screen format
  • 20:9 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 87.5%
  • 87.4%
PPI /points per inch/
  • 401 PPI
  • 405 PPI
Screen protection
  • Corning Gorilla Glass 6
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for Reno2, Galaxy A51.
SpecificationReno2Galaxy A51
Rear camera, main
  • 48 MP
  • Quad
  • 48 MP
  • Quad
Camera specs
  • 48 MP
  • f/1.7
  • 26mm (wide)
  • 1/2.0"
  • 0.8µm
  • PDAF
  • OIS -13MP
  • f/2.4
  • (telephoto)
  • 1/3.4"
  • 1.0µm
  • PDAF -8 MP
  • f/2.2
  • 13mm (ultrawide)
  • 1/3.2"
  • 1.4µm -2 MP B/W
  • 1/5"
  • 1.75µm
  • 48 MP
  • f/2.0
  • 26mm (wide)
  • 1/2.0"
  • 0.8µm
  • PDAF -12 MP
  • f/2.2
  • 12mm (ultrawide) -5 MP
  • f/2.4
  • 25mm (macro)
  • 1/5.0"
  • 1.12µm -5 MP
  • 1.12µm
  • depth sensor
Functions
  • LED flash
  • HDR
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 16 MP
  • Single
  • 32 MP
  • Single
Specifications
  • Motorized pop-up 16 MP
  • f/2.0
  • 26mm (wide)
  • 1/3.1"
  • 1.0µm
  • 32 MP
  • f/2.2
  • 26mm (wide)
  • 1/2.8"
  • 0.8µm
Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for Reno2, Galaxy A51.
SpecificationReno2Galaxy A51
Processor CPU
  • Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)
  • Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
Graphics processor GPU
  • Adreno 618
  • Mali-G72 MP3
Antutu 7 score *
  • 243840
  • 155326
Antutu 8 score *
  • 259248
  • 186846
GeekBench 5 Single Core *
  • 542
  • 322
GeekBench 5 Multi-Core *
  • 1719
  • 1212
General specs
General specs — specifications for Reno2, Galaxy A51.
SpecificationReno2Galaxy A51
Release date
  • 2019
  • August
  • 2019
  • December
Colors
  • Luminous Black
  • Ocean Blue
  • Sunset Pink
  • Prism Crush Black
  • White
  • Blue
  • Pink
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 470 EUR
  • $280
Battery life Unknown
  • Talking time- Up to 32 h (3G) Music play - Up to 87 h
Body build
  • Front glass (Gorilla Glass 6)
  • Back glass (Gorilla Glass 5)
  • aluminum frame
  • Glass front (Gorilla Glass 3)
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for Reno2, Galaxy A51.
SpecificationReno2Galaxy A51
SIM card
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1xEV-DO -4G - LTE (unspecified)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE (unspecified)
Speed
  • HSPA
  • LTE-A
  • HSPA
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
USB
  • Type-C 1.0 reversible connector
  • USB On-The-Go
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 5.0
  • A2DP
  • LE
Harmful irradiation Unknown
  • SAR - 0.80 W/kg (head) 0.67 W/kg (body) SAR EU - 0.37 W/kg (head) 1.59 W/kg (body)
Music and Audio
Music and Audio — specifications for Reno2, Galaxy A51.
SpecificationReno2Galaxy A51
Radio
  • FM radio
  • FM radio
Others
  • Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Reno2, Galaxy A51.
SpecificationReno2Galaxy A51
Dop
  • Sensors Fingerprint (under display
  • optical)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 20W (VOOC Flash Charge 3.0)
  • Sensors Fingerprint (under display
  • optical)
  • accelerometer
  • gyro
  • proximity
  • compass - ANT+ - Fast battery charging 15W - Versions: SM-A515F/DSN (Global); SM-A515F/DS (LATAM); SM-A515F/DST (Brazil); SM-A515F/DSM (Russia); SM-A515F/N (Australia)