Screen size
Noir X4004.5"
Noir X550Winner: 4.7"+4.3%
Quick verdict
Noir X550 leads the measured specs 3-1.
Measured wins
Noir X400
1
spec wins
Ties
12
equal specs
Noir X550
3
spec wins
Overall winner
Screen size
Technology
Noir X400
GSM / HSPA
Noir X550
GSM / HSPA
2G bands
Noir X400
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Noir X550
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
Noir X400
HSDPA 900 / 2100
Noir X550
HSDPA 900 / 2100
Speed
Noir X400
HSPA 21.1/5.76 Mbps
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
equal specsRAM
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
Noir X550
HSPA 21.1/5.76 Mbps
Announced
Noir X400
2014, November. Released 2014, November
Noir X550
2015, January. Released 2015, January
Status
Noir X400
Discontinued
Noir X550
Discontinued
Dimensions
Noir X400
131 x 65 x 7.8 mm (5.16 x 2.56 x 0.31 in)
Noir X550
139.1 x 69.2 x 7.9 mm (5.48 x 2.72 x 0.31 in)
Weight
Noir X400
-
Noir X550
-
SIM
Noir X400
Dual SIM
Noir X550
Dual SIM
Type
Noir X400
TFT
Noir X550
IPS LCD
Size
Noir X400
4.5 inches, 55.8 cm2 (~65.5% screen-to-body ratio)
Noir X550
4.7 inches, 60.9 cm2 (~63.3% screen-to-body ratio)
Resolution
Noir X400
480 x 854 pixels, 16:9 ratio (~218 ppi density)
Noir X550
720 x 1280 pixels, 16:9 ratio (~312 ppi density)
OS
Noir X400
Android 4.4.2 (KitKat)
Noir X550
Android 4.4.2 (KitKat)
Chipset
Noir X400
Mediatek MT6582 (28 nm)
Noir X550
Mediatek MT6582 (28 nm)
CPU
Noir X400
Quad-core 1.3 GHz Cortex-A7
Noir X550
Quad-core 1.3 GHz Cortex-A7
GPU
Noir X400
Mali-400MP2
Noir X550
Mali-400MP2
Card slot
Noir X400
microSDHC
Noir X550
microSDHC
Internal
Noir X400
8GB 1GB RAM
Noir X550
8GB 1GB RAM
Single
Noir X400
8 MP, AF
Noir X550
8 MP
Features
Noir X400
LED flash, panorama
Noir X550
LED flash
Video
Noir X400
720p@30fps
Noir X550
Yes
Single
Noir X400
2 MP
Noir X550
2 MP
Video
Noir X400
Noir X550
Loudspeaker
Noir X400
Yes
Noir X550
Yes
3.5mm jack
Noir X400
Yes
Noir X550
Yes
WLAN
Noir X400
Wi-Fi 802.11 b/g/n, hotspot
Noir X550
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
Noir X400
4.0, A2DP
Noir X550
4.0, A2DP
Positioning
Noir X400
A-GPS only
Noir X550
A-GPS only
NFC
Noir X400
No
Noir X550
No
Radio
Noir X400
FM radio
Noir X550
FM radio
USB
Noir X400
microUSB 2.0
Noir X550
microUSB 2.0
Sensors
Noir X400
Accelerometer, proximity, compass
Noir X550
Accelerometer
Type
Noir X400
Li-Ion 1800 mAh battery
Noir X550
Li-Ion 1800 mAh battery
Stand-by
Noir X400
Up to 230 h (2G) / Up to 230 h (3G)
Noir X550
-
Talk time
Noir X400
Up to 16 h (2G) / Up to 10 h (3G)
Noir X550
-
Colors
Noir X400
Black
Noir X550
Black
Price
Noir X400
About 90 EUR
Noir X550
About 120 EUR