Samsung Gear S2 classic 3G vs vivo Z3

Samsung Gear S2 classic 3G

vivo Z3

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA

HSDPA 850, 900, 2100
4G network

-

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

-

3.1 Mbps download, 1.8 Mbps upload
LTE speed

-

LTE, Cat15, 798 Mbps download, 226 Mbps upload
GPRS

No

Yes
EDGE

No

Yes

Display
Display type

Super AMOLED capacitive touchscreen

IPS LCD capacitive touchscreen
Physical size

1.2 inches

6.3 inches
Resolution

360 x 360 pixels

1080 x 2280 pixels
Pixel density

424 ppi

400 ppi
Display colors

16777216

16777216
Protection

Corning Gorilla Glass 3

2.5D curved glass screen
Multitouch

Yes

Yes

Hardware
CPU

-

Octa-core
CPU

Dual-core 1.0 GHz ARM Cortex-A7

Dual-core 2.0 / 2.2 GHz Kryo 360 Gold
CPU(second)

Hexa-core 1.7 / 2.2 GHz Kryo 360 Silver
Chipset

Exynos 3250 Dual

Qualcomm SDM670 Snapdragon 670 / Qualcomm SDM710 Snapdragon 710
GPU

Mali-400MP2

Adreno 615 / Adreno 616
Internal storage

4 GB

64, 128 GB
Memory RAM

512 MB

4, 6 GB
Memory card

microSD, microSDHC, microSDXC
Memory card max

-

256 GB

Connectivity
WLAN

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

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

-

Yes
WLAN WiFi Direct

-

Yes
Wi-Fi display

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.1

v4.2
Bluetooth A2DP

-

Yes
bluetooth LE

-

Yes
Bluetooth EDR

-

Yes
NFC

Yes

-
GPS

No

Yes, with A-GPS
GLONASS

-

Yes
Beidou

-

Yes

Features
Messaging SMS

SMS(threaded view)

-
Messaging MMS

MMS

-
Messaging Email

Email

-
Messaging IM

IM

-
Java

No

-
Sensors

Accelerometer, barometer, gyro, heart rate

Accelerometer, compass, fingerprint, gyroscope, infrared face recognition, light, proximity

Main camera
Camera type

-

Dual
Main camera

16 MP, f/2.0
2 MP, f/2.4
Primary camera resolution

-

4608 x 3456 pixels
Primary camera video

-

1080p@30fps
Primary camera flash

-

dual-LED flash
Primary camera phase detection autofocus

-

phase detection autofocus
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