Oppo A1k vs Xiaomi Redmi K20 Pro

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900, CDMA 800
3G network

WCDMA 850, 900, 2100

HSDPA 850, 900, 1700, 1900, 2100, TD-SCDMA 1900, 2000
4G network

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

LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
HSDPA speed

-

42 Mbps
HSUPA speed

-

5.76 Mbps
EV-DO speed

-

3.1 Mbps download, 1.8 Mbps upload
LTE speed

LTE Cat 4, 150.8 Mbps download, 51 Mbps upload

-
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic body

Aluminium alloy, Glass
SIM

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

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

154.5 mm

156.7 mm
Width

73.8 mm

74.3 mm
Thickness

8.4 mm

8.8 mm
Weight

170 g

191 g
Colors

Black, Red

Black, Blue, Red

Display
Display type

IPS capacitive touchscreen

Super AMOLED capacitive touchscreen
Physical size

6.1 inches

6.39 inches
Resolution

720 x 1560 pixels

1080 x 2340 pixels
Pixel density

282 ppi

403 ppi
Display colors

16777216

16777216
Protection

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

2.5D curved glass screen, Scratch resistant, Corning Gorilla Glass 6
Multitouch

Yes

Yes
Display features

-

HDR 10, Always-On display

Main camera
Camera type

Single

Triple
Main camera

8 MP, f/2.2 , 1/3.2" , 1.4 µm

48 MP, f/1.8 , 1/2" , 0.8 µm, 26 mm, 2x optical zoom
8 MP, f/2.4 , 53 mm, 1/4" , 1.12 µm
13 MP, f/2.4 , 12 mm, 1/3" , 1.12 µm
Primary camera resolution

3264 x 2448 pixels

8000 x 6000 pixels
Primary camera video

1080p@30fps

2160p@30fps, 1080p@960fps
Primary camera flash

LED flash

dual LED flash
Camera features

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

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

-

108
DxOMark video

-

89
DxOMark camera score

-

102

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

-

Yes
Wi-Fi display

Yes

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

Type-C reversible connector
USB On-The-Go

Yes

Yes
Bluetooth

v4.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes (L1+L5), with A-GPS
GLONASS

Yes

GLONASS (L1)
GALILEO

-

Galileo (E1+E5a)
Beidou

Yes

Yes

Features
Sensors

Accelerometer, proximity, light, compass, fingerprint

Accelerometer, proximity, light, compass, in-display fingerprint, gyroscope, barometer, hall, step detector, step counter