Category Breakdown
BLU C7
HMD Key
Performance
43.752.4
Camera
19.139.6
Display
56.569.2
Battery
28.128.1
Build
0.20.2
Connectivity
32.647.9
Audio
8.98.9
Overall
29.541.5
Summary
- The BLU C7 features a 6.5-inch IPS LCD display with a resolution of 720 x 1600 pixels, while the HMD Key has a slightly smaller 6.52-inch IPS LCD with a lower resolution of 576 x 1280 pixels.
- In terms of performance, both phones are equipped with a quad-core processor, but the HMD Key's Cortex-A53 is more advanced than the C7's Cortex-A7, and it also offers 2GB of RAM compared to the C7's 1GB.
- Both devices have an 8 MP rear camera, but the HMD Key includes autofocus, enhancing its photography capabilities, while the C7 has an 8 MP selfie camera, compared to the HMD Key's 5 MP.
- Both phones are powered by a 4000 mAh battery, but the HMD Key supports 10W charging, whereas the C7 does not support any fast charging.
- The BLU C7 runs on Android 10 (Go edition), while the HMD Key operates on the more recent Android 14 (Go edition), providing a more updated software experience.
Side-by-side Specification Comparison
BLU C7
HMD Key
General
Release Date
2021, May 22
2025, January 02
Announced
2021, May 22
2025, January 02
Description
N/A
N/A
Display
Size
6.5"
6.52"
Type
IPS LCD
IPS LCD, 460 nits (peak)
Resolution
720 x 1600 pixels, 20:9 ratio (~270 ppi density)
576 x 1280 pixels, 20:9 ratio (~215 ppi density)
PPI
720
576
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
N/A
Unisoc SC9832E
CPU
Quad-core 1.3 GHz Cortex-A7
Quad-core 1.3 GHz Cortex-A53
GPU
N/A
Mali-820MP1
Memory
32GB 1GB RAM
32GB 2GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC
microSDXC (uses shared SIM slot)
Camera
Main Camera
8 MP0.3 MP, (depth)
8 MP, (wide), AF
Main Camera Features
LED flash
LED flash, panorama
Front Camera
8 MP
5 MP
Front Camera Features
N/A
N/A
Video Recording
1080p@30fps
Yes
Selfie Video
720p@30fps
Yes
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
4000 mAh
4000 mAh
Battery Details
Li-Po 4000 mAh
4000 mAh
Charging Details
N/A
10W wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
165 x 76.5 x 8.9 mm (6.50 x 3.01 x 0.35 in)
166.4 x 76.9 x 9 mm (6.55 x 3.03 x 0.35 in)
Weight
186 g
185.4 g
Materials
N/A
N/A
Colors
Black, Blue, Green, Red
Black, Blue
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Nano-SIM + Nano-SIM
Nano-SIM
Network
GSM / HSPA
GSM / HSPA / LTE
Network Speed
HSPA 21.1/5.76 Mbps
HSPA, LTE
5G
✗
✗
4G
✗
✓
WiFi
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Wi-Fi 802.11 b/g/n
Bluetooth
4.0, A2DP
4.2, A2DP, LE
NFC
✗
✗
USB
microUSB 2.0
USB Type-C
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS
GPS, GALILEO
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 10 (Go edition)
Android 14 (Go edition)
Fingerprint
✓
✗
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer
Accelerometer, proximity

