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

