Oppo A83 vs Samsung Galaxy S20 Ultra 5G

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA - China

GSM 850, 900, 1800, 1900; CDMA 800, 1900 & TD-SCDMA
3G network

HSDPA 850, 900, 2100 - India, Thailand; HSDPA 850, 900, 1900, 2100 - China

HSDPA 850, 900, 1700(AWS), 1900, 2100; CDMA2000 1xEV-DO
4G network

LTE frequency band 1(2100), 3(1800), 5(850), 8(900), 38(2600), 40(2300), 41(2500) - India, Thailand; LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500) - China

LTE frequency band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 14(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 28(700), 29(700), 30(2300), 38(2600), 39(1900), 40(2300), 41(2500), 46(5200), 48, 66(1700/2100), 71(600)
5G network

-

5G band 2(1900), 5(850), 41(2500), 66(1700), 71(600), 260(39 GHz), 261(28 GHz)
HSDPA speed

-

42.2 Mbps
HSUPA speed

-

5.76 Mbps
HSPA speed

HSPA

-
LTE speed

LTE

LTE-A (7CA), Cat20, 2000 Mbps download, 200 Mbps upload
5G speed

-

5+ Gbps download
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Front glass, aluminium body

Front glass(Gorilla Glass 6), back glass(Gorilla Glass 6), aluminium frame
SIM

Dual SIM (Nano-SIM, dual stand-by)

Single SIM (Nano-SIM and/or eSIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by)
Height

150.5 mm

166.9 mm
Width

73.1 mm

76 mm
Thickness

7.7 mm

8.8 mm
Weight

143 g

222 g
Payment

-

Samsung Pay
Waterproof

-

IP68, 1.5m for 30 mins
Dust proof

-

IP68
Colors

Black, Champagne

Black, Grey

Display
Display type

IPS LCD capacitive touchscreen

Dynamic AMOLED 2X capacitive touchscreen
Physical size

5.7 inches

6.9 inches
Resolution

720 x 1440 pixels

1440 x 3200 pixels
Pixel density

282 ppi

511 ppi
Display colors

16777216

16777216
Protection

-

Scratch resistant, Corning Gorilla Glass 6
Multitouch

Yes

Yes
Display features

-

Always-on display, HDR10+
DxOMark display score

-

87

Hardware
CPU

-

Octa-core
CPU

Octa-core 2.5 GHz ARM Cortex-A53

Dual-core / Single-core 2.73 / 2.84 GHz Mongoose M5 / Kryo 585
CPU(second)

Dual-core / Triple-core 2.50 / 2.42 GHz Cortex-A76 / Kryo 585
CPU(third)

Quad-core 2.0 / 1.8 GHz Cortex-A55 / Kryo 585
Chipset

Mediatek MT6763T Helio P23

Exynos 990 - global / Qualcomm SM8250 Snapdragon 865 - USA
GPU

Mali-G71 MP2

Mali-G77 MP11 / Adreno 650
Memory RAM

3, 4 GB

12, 16 GB
Internal storage

32 GB

128, 256, 512 GB
Memory card

microSD

microSD, microSDHC, microSDXC
Memory card max

256 GB

1 TB
Storage

-

UFS 3.0

Main camera
Camera type

-

Quad
Main camera

13 MP, f/2.2

108 MP, f/1.8 , 26 mm, 1/1.33" , 0.8 µm, 10x hybrid optical zoom
48 MP, f/3.5 , 103 mm, 1/2.0" , 0.8 µm
12 MP, f/2.2 , 13 mm, 1.4 µm
TOF(time of flight) 3D camera , 0.3 MP, f/1.0
Primary camera resolution

4160 x 3120 pixels

12000 x 9000 pixels
Primary camera video

1080p@30fps

4320p@24fps, 2160p@30/60fps, 1080p@30/60/240fps, 720p@960fps, HDR10+, dual-video rec., stereo sound rec., gyro-EIS & OIS
Primary camera Autofocus

autofocus

-
Primary camera flash

LED flash

LED flash
Camera features

Geo-tagging, HDR, face detection, panorama, touch focus

Autofocus, continuous shooting, digital zoom, optical zoom, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, phase detection autofocus
DxOMark photo

-

128
DxOMark zoom

-

88
DxOMark video

-

106
DxOMark camera score

-

126

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac, 802.11ax
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

Yes

Yes
USB

microUSB 2.0

Type-C 1.0 reversible connector
USB On-The-Go

Yes

Yes
Bluetooth

v4.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
GALILEO

-

Yes
Beidou

-

Yes

Features
Messaging SMS

SMS(threaded view)

-
Messaging MMS

MMS

-
Messaging Email

Email

-
Messaging Push Email

Push Email

-
Sensors

Accelerometer, compass, proximity

Accelerometer, barometer, compass, fingerprint, gyroscope, proximity
Power bank function

-

Yes