Screen size
45 Helium 4G4.5"
50d Helium 4GWinner: 5.0"+10%
Quick verdict
50d Helium 4G leads the measured specs 8-1.
Measured wins
45 Helium 4G
1
spec wins
Ties
8
equal specs
50d Helium 4G
8
spec wins
Overall winner
Screen size
Technology
45 Helium 4G
GSM / HSPA / LTE
50d Helium 4G
GSM / HSPA / LTE
2G bands
45 Helium 4G
GSM 850 / 900 / 1800 / 1900
50d Helium 4G
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
45 Helium 4G
HSDPA 900 / 2100 / 1800
50d Helium 4G
HSDPA 900 / 2100
4G bands
45 Helium 4G
1, 3, 7, 8
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
equal specsRAM
equal specsStorage
Main camera
Front camera
Battery
Wired 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
50d Helium 4G
3, 7, 20
Speed
45 Helium 4G
HSPA 42.2/11.5 Mbps, LTE Cat4 150/50 Mbps
50d Helium 4G
HSPA 42.2/11.5 Mbps, LTE Cat4 150/50 Mbps
Announced
45 Helium 4G
2014. Released 2014
50d Helium 4G
2015, July. Released 2015, July
Status
45 Helium 4G
Discontinued
50d Helium 4G
Discontinued
Dimensions
45 Helium 4G
135 x 67 x 9.8 mm (5.31 x 2.64 x 0.39 in)
50d Helium 4G
146 x 72.2 x 8.4 mm (5.75 x 2.84 x 0.33 in)
Weight
45 Helium 4G
140 g (4.94 oz)
50d Helium 4G
154 g (5.43 oz)
SIM
45 Helium 4G
Micro-SIM
50d Helium 4G
Dual SIM (Micro-SIM, dual stand-by)
Type
45 Helium 4G
IPS LCD
50d Helium 4G
IPS LCD
Size
45 Helium 4G
4.5 inches, 57.6 cm2 (~63.7% screen-to-body ratio)
50d Helium 4G
5.0 inches, 68.9 cm2 (~65.4% screen-to-body ratio)
Resolution
45 Helium 4G
480 x 800 pixels, 5:3 ratio (~207 ppi density)
50d Helium 4G
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
OS
45 Helium 4G
Android 4.3 (Jelly Bean)
50d Helium 4G
Android 5.1 (Lollipop)
Chipset
45 Helium 4G
Qualcomm MSM8926 Snapdragon 400 (28 nm)
50d Helium 4G
Qualcomm MSM8916 Snapdragon 410 (28 nm)
CPU
45 Helium 4G
Quad-core 1.2 GHz Cortex-A7
50d Helium 4G
Quad-core 1.2 GHz Cortex-A53
GPU
45 Helium 4G
Adreno 305
50d Helium 4G
Adreno 305
Card slot
45 Helium 4G
microSDHC (dedicated slot)
50d Helium 4G
microSD
Internal
45 Helium 4G
4GB 1GB RAM
50d Helium 4G
8GB 1GB RAM
Other
45 Helium 4G
eMMC 4.5
50d Helium 4G
eMMC 4.5
Single
45 Helium 4G
5 MP, AF
50d Helium 4G
13 MP, AF
Features
45 Helium 4G
LED flash
50d Helium 4G
LED flash
Video
45 Helium 4G
1080p@30fps
50d Helium 4G
1080p@30fps
Single
45 Helium 4G
VGA
50d Helium 4G
5 MP
Video
45 Helium 4G
50d Helium 4G
Loudspeaker
45 Helium 4G
Yes
50d Helium 4G
Yes
3.5mm jack
45 Helium 4G
Yes
50d Helium 4G
Yes
WLAN
45 Helium 4G
Wi-Fi 802.11 b/g/n, hotspot, Wi-Fi Direct, DLNA
50d Helium 4G
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Bluetooth
45 Helium 4G
4.0, A2DP, EDR, LE
50d Helium 4G
4.0, LE
Positioning
45 Helium 4G
GPS, GLONASS
50d Helium 4G
GPS
NFC
45 Helium 4G
No
50d Helium 4G
No
Radio
45 Helium 4G
FM radio
50d Helium 4G
FM radio
USB
45 Helium 4G
microUSB 2.0
50d Helium 4G
microUSB 2.0
Sensors
45 Helium 4G
Accelerometer, proximity, compass
50d Helium 4G
Accelerometer, proximity, compass
Type
45 Helium 4G
Li-Ion 1850 mAh, removable
50d Helium 4G
Li-Ion 2100 mAh, removable
Talk time
45 Helium 4G
Up to 9 h (2G) / Up to 7 h (3G)
50d Helium 4G
-
Colors
45 Helium 4G
Black
50d Helium 4G
Dark blue, Black
Price
45 Helium 4G
About 230 EUR
50d Helium 4G
About 140 EUR