OnePlus 8 5G vs Samsung Galaxy S20 Ultra 5G

Specs compared side by side, measured on real phones shared by owners with the Device Info app.

OnePlus 8 5GSnapdragon 865 5GChange
Samsung Galaxy S20 Ultra 5GExynos 990Snapdragon 865 5G2 chip versionsChange

Key differences

  1. Chipset: the OnePlus 8 5G uses the Snapdragon 865 5G (7 nm TSMC N7P), the Galaxy S20 Ultra 5G the Exynos 990 (7 nm Samsung). The OnePlus 8 5G's fastest core runs at 2.84 GHz, the Galaxy S20 Ultra 5G's at 2.73 GHz.
  2. Screen: 6.6 inches on the OnePlus 8 5G, 6.9 inches on the Galaxy S20 Ultra 5G. Up to 90 Hz on the OnePlus 8 5G, 60 Hz on the Galaxy S20 Ultra 5G.
  3. Battery: 4,320 mAh on the OnePlus 8 5G, 4,855 mAh on the Galaxy S20 Ultra 5G.
  4. Versions: owners have shared the OnePlus 8 5G as 8GB | 128GB, the Galaxy S20 Ultra 5G as 12GB | 128GB.

The same on both: Android 13, Wi-Fi 6 and NFC.

Chipset

Chipset
Snapdragon 865 5GExynos 990
Process
7 nm TSMC N7P7 nm Samsung
CPU
1× 2.84 GHz Cortex-A77
3× 2.42 GHz Cortex-A77
4× 1.80 GHz Cortex-A552× 2.73 GHz Mongoose M5
2× 2.50 GHz Cortex-A76
4× 2.00 GHz Cortex-A55
Top CPU speed
2.84 GHz2.73 GHz
CPU cores
88
GPU
Adreno 650Mali-G77

Memory

Versions seen
8GB | 128GB12GB | 128GB
RAM type
LPDDR5LPDDR5

Display

Size
6.6 in6.9 in
Resolution
1080 × 2400720 × 1600
Pixel density
401 ppi256 ppi
Refresh rates
90 Hzalso 6060 Hz
HDR
HDR10, HDR10+, HLGHDR10, HDR10+, HLG

Battery

Capacity
4,320 mAh4,855 mAh

Cameras

Back camera 1
12 MP4000 × 3000 · f/1.75 · 4.75 mm · OIS12 MP4000 × 3000 · f/1.8 · 7 mm · OIS
Back camera 2
—12 MP4000 × 3000 · f/2.2 · 2.22 mm
Back camera 3
—0.3 MP640 × 480 · f/1 · 2.58 mm
Front camera 1
4.1 MP2328 × 1748 · f/2.45 · 3.74 mm10 MP3648 × 2736 · f/2.2 · 3.8 mm
Front camera 2
—7.1 MP3216 × 2208 · f/2.2 · 3.8 mm

Megapixels are what Android reports to apps. Many phones combine pixels by default, so the advertised megapixels can be higher.

Connectivity

Wi-Fi
Wi-Fi 6Wi-Fi 6
6 GHz Wi-Fi
NoNo
Bluetooth LE Audio
NoNo
NFC
YesYes
UWB
NoNo
USB host
YesYes

Software

Android
Android 13Android 13
UI
—One UI 5.1
Released with
Android 10Android 10
Widevine DRM
L3L1

Sensors

Sensors
51 sensors43 sensors
OnePlus 8 5G full specs Galaxy S20 Ultra 5G full specs

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From phones shared with the Device Info app · updated October 2026 Hardware specs only. No personal data. Privacy