Oppo A31 (2015) vs UMIDIGI Crystal

Oppo A31 (2015)

UMIDIGI Crystal

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

TD-SCDMA 1880, 2010

HSDPA 850, 900, 2100
4G network

-

LTE frequency band 1(2100), 3(1800), 5(850), 8(900), 7(2600), 18(800)
LTE speed

LTE, Cat4, 150 Mbps download, 50 Mbps upload

LTE, Cat4, 150 Mbps download, 51 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

-

Metal, glass
SIM

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

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

131.9 mm

141.3 mm
Width

65.5 mm

74.8 mm
Thickness

8 mm

8.1 mm
Weight

135 g

180 g
Colors

Blue, White

Black

Main camera
Camera type

-

Dual
Main camera

8 MP

13 MP, 1.127 µm
5 MP
Primary camera resolution

3264 x 2448 pixels

4160 x 3120 pixels
Primary camera video

1080p@30fps

1080@30fps
Primary camera Autofocus

autofocus

-
Primary camera flash

LED flash

LED flash
Primary camera phase detection autofocus

-

phase detection autofocus
Camera features

Geo-tagging

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

Features
Messaging SMS

SMS(threaded view)

-
Messaging MMS

MMS

-
Messaging Email

Email

-
Messaging Push Email

Push Email

-
Java

No

-
Sensors

Accelerometer, proximity

Accelerometer, compass, fingerprint, light, proximity