Microsoft Lumia 640 XL
#5933
verykool s5025 Helix
#6065Category Breakdown
Microsoft Lumia 640 XL
verykool s5025 Helix
Performance
43.641.7
Camera
19.119.1
Display
56.556.5
Battery
24.218.1
Build
0.215.1
Connectivity
43.832.2
Audio
8.98.9
Overall
25.925.3
Summary
- The Microsoft Lumia 640 XL features a larger 5.7-inch IPS LCD display with a resolution of 720 x 1280 pixels, while the verykool s5025 Helix has a 5.0-inch IPS LCD with the same resolution but a higher pixel density of approximately 294 ppi.
- In terms of performance, the Lumia is powered by a Qualcomm Snapdragon 400 chipset with a quad-core 1.2 GHz CPU, whereas the Helix uses a Mediatek MT6580 with a slightly faster 1.3 GHz CPU.
- Both devices have a 13 MP rear camera and a 5 MP front camera, capable of recording 1080p video, but neither offers optical image stabilization.
- The Lumia has a significantly larger 3000 mAh battery compared to the Helix's 1950 mAh, which may impact overall usage time.
- Software-wise, the Lumia runs on Microsoft Windows Phone 8.1, upgradable to Windows 10, while the Helix operates on Android 5.1 (Lollipop), providing different user experiences.
- The build quality of the Lumia is bulkier and heavier at 171g, compared to the lighter and slimmer Helix at 136g.
Side-by-side Specification Comparison
Microsoft Lumia 640 XL
verykool s5025 Helix
General
Release Date
2015
2015
Announced
2015
2015
Description
N/A
N/A
Display
Size
5.7"
5"
Type
IPS LCD
IPS LCD
Resolution
720 x 1280 pixels, 16:9 ratio (~259 ppi density)
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
PPI
720
720
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
Corning Gorilla Glass 3
Scratch-resistant glass
Performance
Chipset
Qualcomm MSM8226 Snapdragon 400 (28 nm)
Mediatek MT6580 (28 nm)
CPU
Quad-core 1.2 GHz Cortex-A7
Quad-core 1.3 GHz Cortex-A7
GPU
Adreno 305
Mali-400MP2
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, panorama
Front Camera
5 MP
5 MP
Front Camera Features
N/A
N/A
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
1080p@30fps
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
3000 mAh
1950 mAh
Battery Details
Li-Ion 3000 mAh, removable
Li-Ion 1950 mAh, non-removable
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)
143.5 x 72.5 x 7.9 mm (5.65 x 2.85 x 0.31 in)
Weight
171 g
136 g
Materials
N/A
N/A
Colors
Matte cyan, Orange, Black, Matte white, Glossy white
Black, Blue
Foldable
✗
✗
SAR
N/A
0.68 W/kg (head) 1.25 W/kg (body)
Connectivity
SIM
Micro-SIM
Dual SIM (Micro-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 b/g/n, Wi-Fi Direct, hotspot
Bluetooth
4.0, A2DP
4.0, A2DP, LE
NFC
✓
✗
USB
microUSB 2.0
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, BDS
GPS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10
Android 5.1 (Lollipop)
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer, proximity, compass, sensor core
Accelerometer, proximity