Oppo A1k vs Xiaomi Mi Mix 2s

Network
2G network

GSM 850, 900, 1800, 1900

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

WCDMA 850, 900, 2100

HSDPA 800, 850, 900, 1700(AWS), 1800, 1900, 2100; CDMA2000 1xEV-DO
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), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 18(800), 19(800), 20(800), 25(1900), 26(850), 27(800), 28(700), 29(700), 30(2300), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
HSPA speed

-

HSPA
LTE speed

LTE Cat 4, 150.8 Mbps download, 51 Mbps upload

LTE
GPRS

Yes

Yes
EDGE

Yes

Yes

Display
Display type

IPS capacitive touchscreen

IPS LCD capacitive touchscreen
Physical size

6.1 inches

5.99 inches
Resolution

720 x 1560 pixels

1080 x 2160 pixels
Pixel density

282 ppi

403 ppi
Display colors

16777216

16777216
Protection

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

Corning Gorilla Glass 4
Multitouch

Yes

Yes

Main camera
Camera type

Single

Dual
Main camera

8 MP, f/2.2 , 1/3.2" , 1.4 µm

12 MP, f/1.8 , 1/2.55" , 1.4 µm, 2x optical zoom
12 MP, f/2.4 , 1/2.9" , 1 µm
Primary camera resolution

3264 x 2448 pixels

4000 x 3000 pixels
Primary camera video

1080p@30fps

2160p@30fps, 1080p@30fps, 720p@120fps
Primary camera Autofocus

-

dual pixel phase detection autofocus
Primary camera flash

LED flash

dual-LED dual-tone flash
Electronic image stabilization

-

EIS (gyro)
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

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

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

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

Yes

Yes
WLAN WiFi Direct

-

Yes
Wi-Fi display

Yes

-
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

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

Yes

-
Bluetooth

v4.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
NFC

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
Beidou

Yes

-
BDS

-

Yes

Features
Messaging SMS

-

SMS(threaded view)
Messaging MMS

-

MMS
Messaging Email

-

Email
Messaging IM

-

IM
Messaging Push Email

-

Push Email
Sensors

Accelerometer, proximity, light, compass, fingerprint

Fingerprint (rear-mounted), accelerometer, compass, gyro, proximity