Digma Optima 8027 3G vs vivo Y97

Digma Optima 8027 3G

vivo Y97

Network
2G network

GSM 900, 1800

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

HSDPA 2100

HSDPA 850, 900, 2100
4G network

-

LTE frequency band 1(2100), 3(1800), 5(850), 8(900); LTE-TDD 1900, 2300, 2500, 2600 MHz
EV-DO speed

-

3.1 Mbps download, 1.8 Mbps upload
LTE speed

-

LTE, Cat6, 301 Mbps download, 51 Mbps upload
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Plastic

Plastic, glass
SIM

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

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

123 mm

155.9 mm
Width

208 mm

75.6 mm
Thickness

10 mm

8.1 mm
Weight

320 g

162 g
Colors

Black

Black, Blue, Pink

Main camera
Camera type

-

Dual
Main camera

2 MP

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

1600 x 1200 pixels

4608 x 3456 pixels
Primary camera video

720p@30fps

1080p@30fps
Primary camera flash

-

LED flash
Primary camera phase detection autofocus

-

phase detection autofocus
Camera features

Continuous shooting, digital zoom, geotagging, HDR, white balance settings, scene mode

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

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

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

Yes

Yes
WLAN WiFi Direct

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

microUSB 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.2

v4.2
Bluetooth A2DP

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
Beidou

-

Yes