BLU Vivo 8 vs Oppo A1k

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900
3G network

HSDPA 850, 1700(AWS), 1900, 2100

WCDMA 850, 900, 2100
4G network

LTE frequency band 1(2100), 2(1900), 4(1700/2100), 5(850), 7(2600), 28(700)

LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 18(800), 28(700), 38(2600), 40(2300), 41(2500)
HSDPA speed

42.2 Mbps

-
HSUPA speed

11.5 Mbps

-
LTE speed

-

LTE Cat 4, 150.8 Mbps download, 51 Mbps upload
LTE-A speed

LTE-A, (2CA) Cat6, 300 Mbps download, 50 Mbps upload

-
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

-

Plastic body
SIM

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

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

154.5 mm

154.5 mm
Width

76.5 mm

73.8 mm
Thickness

8.3 mm

8.4 mm
Weight

180 g

170 g
Colors

Black, Gold

Black, Red

Display
Display type

IPS LCD capacitive touchscreen

IPS capacitive touchscreen
Physical size

5.5 inches

6.1 inches
Resolution

1080 x 1920 pixels

720 x 1560 pixels
Pixel density

401 ppi

282 ppi
Display colors

16777216

16777216
Protection

-

2.5D curved glass screen, scratch resistant, Corning Gorilla Glass 3
Multitouch

Yes

Yes

Main camera
Camera type

-

Single
Main camera

13 MP, f/2.0

8 MP, f/2.2 , 1/3.2" , 1.4 µm
Primary camera resolution

-

3264 x 2448 pixels
Primary camera video

1080p@30fps

1080p@30fps
Primary camera Autofocus

phase detection autofocus

-
Primary camera flash

LED flash

LED flash
Camera features

1.12 µm pixel size, 1/3" sensor size, HDR, face detection, geo-tagging, touch focus

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

Connectivity
WLAN

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

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

Yes

Yes
WLAN WiFi Direct

Yes

-
Wi-Fi display

-

Yes
USB

microUSB 2.0

microUSB 2.0
USB On-The-Go

-

Yes
USB host

Yes

-
Bluetooth

v4.0

v4.2
Bluetooth A2DP

Yes

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
GLONASS

-

Yes
Beidou

-

Yes

Features
Messaging SMS

SMS(threaded view)

-
Messaging MMS

MMS

-
Messaging Email

Email

-
Messaging IM

IM

-
Messaging Push Email

Push Email

-
Java

No

-
Sensors

Fingerprint (front-mounted), accelerometer, compass, gyro, proximity

Accelerometer, proximity, light, compass, fingerprint