Category Breakdown
Microsoft Lumia 640 XL Dual SIM
Unnecto Air 5.5
Performance
43.638.8
Camera
19.136.0
Display
56.556.5
Battery
24.220.0
Build
0.20.2
Connectivity
45.035.8
Audio
8.987.6
Overall
26.030.9
Summary
- The Microsoft Lumia 640 XL Dual SIM features a larger 5.7-inch IPS LCD display compared to the Unnecto Air 5.5's 5.5-inch screen, both offering a resolution of 720 x 1280 pixels.
- In terms of performance, the Lumia is powered by a Qualcomm Snapdragon 400 chipset with a 1.2 GHz CPU, while the Unnecto utilizes a 1.3 GHz quad-core processor, though both have 1GB of RAM.
- Both devices sport a 13 MP rear camera, but the Unnecto can record video at 60fps, whereas the Lumia is limited to 30fps.
- The Lumia has a superior battery capacity of 3000 mAh compared to the Unnecto's 2100 mAh.
- In terms of software experience, the Lumia runs on Microsoft Windows Phone 8.1, upgradable to Windows 10, while the Unnecto operates on Android 4.4.2 (KitKat).
- Build quality-wise, the Lumia is slightly heavier at 171g and thicker at 9mm, compared to the lighter and slimmer Unnecto at 156g and 8.5mm.
Side-by-side Specification Comparison
Microsoft Lumia 640 XL Dual SIM
Unnecto Air 5.5
General
Release Date
2015
2015
Announced
2015
2015
Description
N/A
N/A
Display
Size
5.7"
5.5"
Type
IPS LCD
IPS LCD
Resolution
720 x 1280 pixels, 16:9 ratio (~259 ppi density)
720 x 1280 pixels, 16:9 ratio (~267 ppi density)
PPI
720
720
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
Corning Gorilla Glass 3
N/A
Performance
Chipset
Qualcomm MSM8226 Snapdragon 400 (28 nm)
N/A
CPU
Quad-core 1.2 GHz Cortex-A7
Quad-core 1.3 GHz
GPU
Adreno 305
Mali-450MP4
Memory
8GB 1GB RAM
8GB 1GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDHC
Camera
Main Camera
13 MP, f/2.0, 28mm (wide), 1/3.0", AF
13 MP, AF
Main Camera Features
Zeiss optics, LED flash
LED flash, HDR
Front Camera
5 MP
5 MP
Front Camera Features
N/A
N/A
Video Recording
1080p@30fps
1080p@60fps
Selfie Video
1080p@30fps
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
3000 mAh
2100 mAh
Battery Details
Li-Ion 3000 mAh, removable
Li-Ion 2100 mAh battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
157.9 x 81.5 x 9 mm (6.22 x 3.21 x 0.35 in)
153 x 76 x 8.5 mm (6.02 x 2.99 x 0.33 in)
Weight
171 g
156 g
Materials
N/A
N/A
Colors
Matte cyan, Orange, Black, Matte white, Glossy white
Black, White, Gray
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Dual SIM (Micro-SIM, dual stand-by)
Dual SIM (dual stand-by)
Network
GSM / HSPA
GSM / HSPA
Network Speed
HSPA 42.2/5.76 Mbps
HSPA 21.1/5.76 Mbps
5G
✗
✗
4G
✗
✗
WiFi
Wi-Fi 802.11 b/g/n, DLNA, hotspot
Wi-Fi 802.11 a/b/g/n, dual-band, hotspot
Bluetooth
4.0, A2DP
4.0, A2DP
NFC
✓
✗
USB
microUSB 2.0
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, BDS
GPS
Audio
Stereo Speakers
✗
✓
Loudspeaker
Yes
Yes, with stereo speakers
Audio Jack
Yes
Yes
Software & Security
Operating System
Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10
Android 4.4.2 (KitKat)
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer, proximity, compass, sensor core
Accelerometer

