Oppo A3 vs ZTE nubia Watch

Oppo A3

ZTE nubia Watch

Network
2G network

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

GSM 800
3G network

HSDPA 850, 900, 1900, 2100; HSDPA 850, 1700(AWS), 1900, 2100

HSDPA 2100
4G network

LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500); LTE frequency band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)

LTE frequency band 1, 3, 38, 39, 40, 41
HSPA speed

HSPA

-
LTE speed

LTE

-
GPRS

Yes

-
EDGE

Yes

-

Design
Build

Metal

Plastic front (display), stainless steel 316L & aluminum alloy frame
SIM

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

eSIM
Height

156 mm

125 mm
Width

75.3 mm

41.5 mm
Thickness

7.8 mm

14.2 mm
Weight

159 g

98 g
Colors

Garnet Red, Knight Black, Soybean Meal, Stardust Silver

Black, Green, Red

Display
Display type

LTPS IPS LCD capacitive touchscreen

AMOLED
Physical size

6.2 inches

4.01 inches
Resolution

1080 x 2280 pixels

192 x 960 pixels
Pixel density

405 ppi

244 ppi
Display colors

16777216

16777216
Protection

2.5D curved glass screen; LTPS(Low Temperature PolySilicon)

Corning Gorilla Glass
Multitouch

Yes

-

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n, 802.11ac

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

Yes

-
WLAN WiFi Direct

Yes

-
WLAN WiFi Dual Band

Yes

-
USB

microUSB 2.0

No
USB On-The-Go

Yes

-
Bluetooth

v4.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS

Features
Messaging SMS

SMS(threaded view)

-
Messaging MMS

MMS

-
Messaging Email

Email

-
Messaging Push Email

Push Email

-
Sensors

Accelerometer, compass, gyro, proximity

Accelerometer, compass, gyro, heart rate