Vertex Impress Grip vs vivo X21i

Vertex Impress Grip

vivo X21i

Network
2G network

GSM 850, 900, 1800, 1900

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

HSDPA 900, 2100

HSDPA 850, 900, 2100
4G network

LTE frequency band 1(2100), 3(1800), 7(2600), 18(800)

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

-

HSPA
LTE speed

LTE, Cat4, 150 Mbps download, 51 Mbps upload

LTE
GPRS

Yes

Yes
EDGE

Yes

Yes

Main camera
Camera type

-

Dual
Main camera

13 MP

12 MP, f/1.8 , 1/2.5" , 1.4 µm
5 MP, f/2.4
Primary camera resolution

4160 x 3120 pixels

4032 x 3024 pixels
Primary camera video

720p@30fps

1080p@30fps
Primary camera Autofocus

-

dual pixel phase detection autofocus
Primary camera flash

LED flash

LED flash
Camera features

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

Geo-tagging, HDR, face detection, panorama, touch focus

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

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

Yes

Yes
WLAN WiFi Direct

Yes

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

microUSB 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.0

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

Yes

Yes

Features
Messaging SMS

-

SMS(threaded view)
Messaging MMS

-

MMS
Messaging Email

-

Email
Messaging Push Email

-

Push Email
Sensors

Accelerometr, compass, light, proximity

Fingerprint (rear-mounted), accelerometer, compass, proximity