Doogee S88 Pro vs Oppo A1k

Network
2G network

GSM 850, 900, 1800, 1900; CDMA 800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 900, 1700, 1900, 2100

WCDMA 850, 900, 2100
4G network

LTE frequency band 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 20, 25, 26, 28, 34, 38, 39, 40, 41, 66

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

3.1 Mbps download, 1.8 Mbps upload

-
LTE speed

LTE, Cat7, 301 Mbps download, 102 Mbps upload

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

Yes

Yes
EDGE

Yes

Yes

Design
Build

Aluminium, polycarbonate, rubber

Plastic body
SIM

Dual SIM(Nano-SIM/Nano-SIM(microSD))

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

171.6 mm

154.5 mm
Width

85.5 mm

73.8 mm
Thickness

18.7 mm

8.4 mm
Weight

372 g

170 g
Waterproof

IP68, IP69K

-
Dust proof

IP68, IP69K

-
MIL-STD-810G

Yes

-
Colors

Black, Green, Orange

Black, Red

Display
Display type

IPS capacitive touchscreen

IPS capacitive touchscreen
Physical size

6.3 inches

6.1 inches
Resolution

1080 x 2160 pixels

720 x 1560 pixels
Pixel density

383 ppi

282 ppi
Display colors

16777216

16777216
Protection

Scratch resistant, Corning Gorilla Glass 5

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

-

Yes

Main camera
Camera type

Single

Single
Main camera

21 MP

8 MP, f/2.2 , 1/3.2" , 1.4 µm
Primary camera resolution

-

3264 x 2448 pixels
Primary camera video

1080@30fps

1080p@30fps
Primary camera flash

dual-LED flash

LED flash
Camera features

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

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

Connectivity
WLAN

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

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

Yes

Yes
WLAN WiFi Direct

Yes

-
Wi-Fi display

Yes

Yes
WLAN WiFi Dual Band

Yes

-
USB

microUSB 2.0

microUSB 2.0
USB On-The-Go

Yes

Yes
Bluetooth

v5.0

v4.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

-
NFC

Yes

-
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes
GALILEO

Yes

-
Beidou

Yes

Yes

Features
Sensors

Accelerometer, barometer, compass, fingerprint, gyroscope, light, proximity, step counter, step detector

Accelerometer, proximity, light, compass, fingerprint