Home/QMobile/QMobile Noir X550 vs vivo Y31 (2015)
QMobile Noir X550

QMobile Noir X550

#5632
vivo Y31 (2015)

vivo Y31 (2015)

#6454

Category Breakdown

QMobile Noir X550
vivo Y31 (2015)
Performance
42.641.7
Camera
39.615.4
Display
56.556.5
Battery
17.420.0
Build
0.20.2
Connectivity
30.529.4
Audio
8.98.9
Overall
27.023.6

Summary

  • The QMobile Noir X550 and vivo Y31 (2015) both feature a 4.7-inch IPS LCD display with a resolution of 720 x 1280 pixels, providing similar visual quality.
  • In terms of performance, both devices are equipped with a quad-core Cortex-A7 processor and 1GB of RAM, though the vivo Y31 uses a slightly newer Mediatek MT6580 chipset.
  • The camera specifications are identical, with both offering an 8 MP rear camera and a 2 MP front camera, but the vivo Y31 supports video recording at 720p@30fps.
  • The QMobile has a smaller 1800 mAh battery compared to the vivo's 2100 mAh, which may affect longevity.
  • In terms of software, the QMobile runs on Android 4.4.2 (KitKat), while the vivo operates on a more recent Android 5.1 (Lollipop) with Funtouch 2.1, potentially offering a better user experience.
  • Build-wise, the QMobile is slightly slimmer but heavier than the vivo, which may influence user preference.

Side-by-side Specification Comparison

QMobile Noir X550
vivo Y31 (2015)

General

Release Date

2015
2015

Announced

2015
2015

Description

N/A
N/A

Display

Size

4.7"
4.7"

Type

IPS LCD
IPS LCD

Resolution

720 x 1280 pixels, 16:9 ratio (~312 ppi density)
720 x 1280 pixels, 16:9 ratio (~312 ppi density)

PPI

720
720

Refresh Rate

60Hz
60Hz

HDR Support

Protection

N/A
N/A

Performance

Chipset

Mediatek MT6582 (28 nm)
Mediatek MT6580 (28 nm)

CPU

Quad-core 1.3 GHz Cortex-A7
Quad-core 1.3 GHz Cortex-A7

GPU

Mali-400MP2
Mali-400MP2

Memory

8GB 1GB RAM
8GB 1GB RAM

Expandable Storage

Card Slot

microSDHC
microSDXC (dedicated slot)

Camera

Main Camera

8 MP
8 MP

Main Camera Features

LED flash
LED flash, HDR

Front Camera

2 MP
2 MP

Front Camera Features

N/A
N/A

Video Recording

Yes
720p@30fps

Selfie Video

N/A
N/A

Optical Stabilization

Night Mode

Raw Photo Support

Battery

Capacity

1800 mAh
2100 mAh

Battery Details

Li-Ion 1800 mAh battery
2100 mAh, removable

Charging Details

N/A
N/A

Fast Charging

Wireless Charging

Build & Safety

Dimensions

139.1 x 69.2 x 7.9 mm (5.48 x 2.72 x 0.31 in)
137.2 x 68.8 x 8.4 mm (5.40 x 2.71 x 0.33 in)

Weight

N/A
137 g

Materials

N/A
N/A

Colors

Black
White, Black

Foldable

SAR

N/A
N/A

Connectivity

SIM

Dual SIM
Dual SIM

Network

GSM / HSPA
GSM / HSPA

Network Speed

HSPA 21.1/5.76 Mbps
HSPA

5G

4G

WiFi

Wi-Fi 802.11 b/g/n, hotspot
Wi-Fi 802.11 b/g/n, hotspot

Bluetooth

4.0, A2DP
4.0, A2DP

NFC

USB

microUSB 2.0
microUSB 2.0

IR Blaster

Headphone Jack

Radio

Positioning

A-GPS only
GPS

Audio

Stereo Speakers

Loudspeaker

Yes
Yes

Audio Jack

Yes
Yes

Software & Security

Operating System

Android 4.4.2 (KitKat)
Android 5.1 (Lollipop), Funtouch 2.1

Fingerprint

Face Unlock

Sensors

Accelerometer
Accelerometer, proximity, compass