OnePlus 9R vs Oppo A1k

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 800, 850, 900, 1700(AWS), 1800, 1900, 2100

WCDMA 850, 900, 2100
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 34, 38, 39, 40, 41, 46

LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 18(800), 28(700), 38(2600), 40(2300), 41(2500)
5G network

5G band 1, 3, 40, 41, 78 SA/NSA

-
HSDPA speed

42.2 Mbps

-
HSUPA speed

5.76 Mbps

-
EV-DO speed

EV-DO Rev.A 3.1 Mbps download, 1.8 Mbps upload

-
LTE speed

LTE-A (CA), Cat18, 1200 Mbps download, 200 Mbps upload

LTE Cat 4, 150.8 Mbps download, 51 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front (Gorilla Glass 5), glass back (Gorilla Glass 5), aluminum frame

Plastic body
SIM

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

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

161 mm

154.5 mm
Width

74.1 mm

73.8 mm
Thickness

8.4 mm

8.4 mm
Weight

189 g

170 g
Colors

Black, Blue

Black, Red

Display
Display type

Fluid AMOLED

IPS capacitive touchscreen
Physical size

6.55 inches

6.1 inches
Resolution

1080 x 2400 pixels

720 x 1560 pixels
Pixel density

402 ppi

282 ppi
Display colors

16777216

16777216
Protection

Scratch resistant, 2.5D curved glass screen, Corning Gorilla Glass 5

2.5D curved glass screen, scratch resistant, Corning Gorilla Glass 3
Multitouch

-

Yes
Display features

120Hz, HDR10+

-

Main camera
Camera type

Quad

Single
Main camera

(wide) , 48 MP, f/1.7 , 26 mm, 1/2.0" , 0.8 µm

8 MP, f/2.2 , 1/3.2" , 1.4 µm
(ultrawide) , 16 MP, f/2.2 , 123˚ , 14 mm, 1/3.6" , 1.0 µm
(macro) , 5 MP, f/2.4
(depth) , 2 MP, f/2.4
Primary camera resolution

8000 x 6000 pixels

3264 x 2448 pixels
Primary camera video

4K@30/60fps, 1080p@30/60/240fps, Auto HDR, gyro-EIS

1080p@30fps
Primary camera flash

dual-LED flash

LED flash
Camera features

Autofocus, continuous shooting, digital zoom, digital image stabilization, optical image stabilization, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro-mode, phase detection autofocus, contrast detection autofocus, Hasselblad Pro mode, dual native ISO, 2.2 OCL

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

Selfie camera
Selfie camera type

Single

-
Selfie camera

(wide) , 16 MP, f/2.4 , 1/3.06" , 1.0 µm

5 MP, f/2 , 1/5" , 1.12 µm
Selfie camera resolution

4640 x 3456 pixels

2560 x 1920 pixels
Selfie camera features

Face unlock, HDR, digital image stabilization

-
Selfie camera video

1080p@30fps, gyro-EIS

720p@30fps

Connectivity
WLAN

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5GHz, 802.11ac, 802.11ax

Wi-Fi 802.11b, 802.11g, 802.11n
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

Yes

-
Wi-Fi display

-

Yes
WLAN WiFi Dual Band

Yes

-
WLAN DLNA

Yes

-
USB

Type-C 3.1

microUSB 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.1

v4.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

-
Bluetooth AptX

aptX HD

-
NFC

Yes

-
GPS

Yes, with dual-band A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

-
Beidou

-

Yes
BDS

Yes

-