BLU J6
#5039
HMD Key
#3378Category Breakdown
BLU J6
HMD Key
Performance
50.052.4
Camera
24.239.6
Display
56.569.2
Battery
23.028.1
Build
0.20.2
Connectivity
34.547.9
Audio
8.98.9
Overall
29.641.5
Summary
- The BLU J6 features a 6.0-inch IPS LCD display with a resolution of 720 x 1440 pixels, while the HMD Key has a slightly larger 6.52-inch IPS LCD with a lower resolution of 576 x 1280 pixels.
- In terms of performance, the J6 is powered by a Mediatek MT6580 chipset with a quad-core Cortex-A7 CPU, whereas the Key utilizes a Unisoc SC9832E with a quad-core Cortex-A53 CPU, both offering 32GB of storage but differing in RAM, with the Key having 2GB compared to the J6's 1GB.
- Both devices have an 8 MP rear camera, but the Key's selfie camera is lower at 5 MP compared to the J6's 8 MP.
- The battery capacity of the J6 is 2800 mAh, while the Key offers a larger 4000 mAh battery with 10W charging support.
- Finally, the J6 runs on Android 8.1 Oreo (Go edition), whereas the Key operates on the more recent Android 14 (Go edition).
Side-by-side Specification Comparison
BLU J6
HMD Key
General
Release Date
2019
2025, January 02
Announced
2019
2025, January 02
Description
For USA
N/A
Display
Size
6"
6.52"
Type
IPS LCD
IPS LCD, 460 nits (peak)
Resolution
720 x 1440 pixels, 18:9 ratio (~268 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
Mediatek MT6580 (28 nm)
Unisoc SC9832E
CPU
Quad-core 1.3 GHz Cortex-A7
Quad-core 1.3 GHz Cortex-A53
GPU
Mali-400
Mali-820MP1
Memory
32GB 1GB RAM
32GB 2GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC
microSDXC (uses shared SIM slot)
Camera
Main Camera
8 MP, (wide), 1/5.0", 1.12µm, AF
8 MP, (wide), AF
Main Camera Features
LED flash
LED flash, panorama
Front Camera
8 MP
5 MP
Front Camera Features
LED flash
N/A
Video Recording
720p@30fps
Yes
Selfie Video
720p@30fps
Yes
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
2800 mAh
4000 mAh
Battery Details
Li-Po 2800 mAh, removable
4000 mAh
Charging Details
N/A
10W wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
159.6 x 76.6 x 9.1 mm (6.28 x 3.02 x 0.36 in)
166.4 x 76.9 x 9 mm (6.55 x 3.03 x 0.35 in)
Weight
185 g
185.4 g
Materials
N/A
N/A
Colors
Blue, Black, Brown
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
4.1, A2DP, LE
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 8.1 Oreo (Go edition)
Android 14 (Go edition)
Fingerprint
✓
✗
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer, proximity
Accelerometer, proximity