Screen size
equal specs50 Cobalt5.0"
50 Helium 4G5.0"
Quick verdict
50 Helium 4G leads the measured specs 2-1.
Measured wins
50 Cobalt
1
spec wins
Ties
14
equal specs
50 Helium 4G
2
spec wins
Overall winner
Screen size
equal specsTechnology
50 Cobalt
GSM / HSPA / LTE
50 Helium 4G
GSM / HSPA / LTE
2G bands
50 Cobalt
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
50 Helium 4G
GSM 850 / 900 / 1800 / 1900
3G bands
50 Cobalt
HSDPA 900 / 2100
50 Helium 4G
HSDPA 900 / 2100 / 1800
4G bands
50 Cobalt
1, 7, 9, 20
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
equal specsCPU speed
RAM
equal specsStorage
equal specsMain camera
equal specsFront camera
equal specsBattery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
50 Helium 4G
1, 3, 7, 8
Speed
50 Cobalt
HSPA 42.2/11.5 Mbps, LTE Cat4 150/50 Mbps
50 Helium 4G
HSPA 42.2/11.5 Mbps, LTE Cat4 150/50 Mbps
Announced
50 Cobalt
2016, January. Released 2016, March
50 Helium 4G
2014. Released 2014
Status
50 Cobalt
Discontinued
50 Helium 4G
Discontinued
Dimensions
50 Cobalt
141.5 x 71.5 x 9.2 mm (5.57 x 2.81 x 0.36 in)
50 Helium 4G
145 x 71.5 x 9 mm (5.71 x 2.81 x 0.35 in)
Weight
50 Cobalt
135 g (4.76 oz)
50 Helium 4G
160 g (5.64 oz)
SIM
50 Cobalt
Dual SIM (Micro-SIM, dual stand-by)
50 Helium 4G
Micro-SIM
Type
50 Cobalt
IPS LCD
50 Helium 4G
IPS LCD
Size
50 Cobalt
5.0 inches, 68.9 cm2 (~68.1% screen-to-body ratio)
50 Helium 4G
5.0 inches, 68.9 cm2 (~66.5% screen-to-body ratio)
Resolution
50 Cobalt
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
50 Helium 4G
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
OS
50 Cobalt
Android 5.1.1 (Lollipop)
50 Helium 4G
Android 4.3 (Jelly Bean)
Chipset
50 Cobalt
Mediatek MT6735P (28 nm)
50 Helium 4G
Qualcomm MSM8926 Snapdragon 400 (28 nm)
CPU
50 Cobalt
Quad-core 1.0 GHz Cortex-A53
50 Helium 4G
Quad-core 1.2 GHz Cortex-A7
GPU
50 Cobalt
Mali-T720MP2
50 Helium 4G
Adreno 305
Card slot
50 Cobalt
microSDXC
50 Helium 4G
microSDHC (dedicated slot)
Internal
50 Cobalt
8GB 1GB RAM
50 Helium 4G
8GB 1GB RAM
Other
50 Cobalt
-
50 Helium 4G
eMMC 4.5
Single
50 Cobalt
8 MP, AF
50 Helium 4G
8 MP, AF
Features
50 Cobalt
LED flash, HDR, panorama
50 Helium 4G
LED flash
Video
50 Cobalt
720p@30fps
50 Helium 4G
1080p@30fps
Single
50 Cobalt
2 MP
50 Helium 4G
2 MP
Video
50 Cobalt
50 Helium 4G
Loudspeaker
50 Cobalt
Yes
50 Helium 4G
Yes
3.5mm jack
50 Cobalt
Yes
50 Helium 4G
Yes
WLAN
50 Cobalt
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, DLNA, hotspot
50 Helium 4G
Wi-Fi 802.11 b/g/n, hotspot, Wi-Fi Direct, DLNA
Bluetooth
50 Cobalt
4.0, A2DP
50 Helium 4G
4.0, A2DP, EDR, LE
Positioning
50 Cobalt
GPS
50 Helium 4G
GPS, GLONASS
NFC
50 Cobalt
No
50 Helium 4G
No
Radio
50 Cobalt
Stereo FM radio, RDS, recording
50 Helium 4G
FM radio
USB
50 Cobalt
microUSB 2.0
50 Helium 4G
microUSB 2.0
Sensors
50 Cobalt
Accelerometer, gyro, proximity
50 Helium 4G
Accelerometer, proximity, compass
Type
50 Cobalt
Li-Ion 2000 mAh, non-removable
50 Helium 4G
Li-Ion 2000 mAh, removable
Stand-by
50 Cobalt
Up to 330 h
50 Helium 4G
-
Talk time
50 Cobalt
Up to 20 h
50 Helium 4G
Up to 10 h (2G) / Up to 8 h (3G)
Colors
50 Cobalt
Blue/Gray
50 Helium 4G
Black
SAR EU
50 Cobalt
0.28 W/kg (head) 1.25 W/kg (body)
50 Helium 4G
0.37 W/kg (head) 0.89 W/kg (body)
Price
50 Cobalt
-
50 Helium 4G
About 280 EUR