Screen size
Noir A8i4.0"
Noir X550Winner: 4.7"+15%
Quick verdict
Noir X550 leads the measured specs 9-0.
Measured wins
Noir A8i
0
spec wins
Ties
7
equal specs
Noir X550
9
spec wins
Overall winner
Screen size
Technology
Noir A8i
GSM / HSPA
Noir X550
GSM / HSPA
2G bands
Noir A8i
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Noir X550
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
Noir A8i
HSDPA 900 / 2100
Noir X550
HSDPA 900 / 2100
Speed
Noir A8i
HSPA 21.1/5.76 Mbps
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
equal specsRAM
Storage
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
Noir X550
HSPA 21.1/5.76 Mbps
Announced
Noir A8i
2014, July. Released 2014, July
Noir X550
2015, January. Released 2015, January
Status
Noir A8i
Discontinued
Noir X550
Discontinued
Dimensions
Noir A8i
126 x 64.4 x 11.2 mm (4.96 x 2.54 x 0.44 in)
Noir X550
139.1 x 69.2 x 7.9 mm (5.48 x 2.72 x 0.31 in)
Weight
Noir A8i
-
Noir X550
-
SIM
Noir A8i
Dual SIM
Noir X550
Dual SIM
Type
Noir A8i
TFT
Noir X550
IPS LCD
Size
Noir A8i
4.0 inches, 45.5 cm2 (~56.1% screen-to-body ratio)
Noir X550
4.7 inches, 60.9 cm2 (~63.3% screen-to-body ratio)
Resolution
Noir A8i
480 x 800 pixels, 5:3 ratio (~233 ppi density)
Noir X550
720 x 1280 pixels, 16:9 ratio (~312 ppi density)
OS
Noir A8i
Android 4.4 (KitKat)
Noir X550
Android 4.4.2 (KitKat)
Chipset
Noir A8i
Mediatek MT6572 (28 nm)
Noir X550
Mediatek MT6582 (28 nm)
CPU
Noir A8i
Dual-core 1.3 GHz Cortex-A7
Noir X550
Quad-core 1.3 GHz Cortex-A7
GPU
Noir A8i
Mali-400
Noir X550
Mali-400MP2
Card slot
Noir A8i
microSDHC
Noir X550
microSDHC
Internal
Noir A8i
4GB 512MB RAM
Noir X550
8GB 1GB RAM
Single
Noir A8i
5 MP
Noir X550
8 MP
Features
Noir A8i
LED flash, panorama
Noir X550
LED flash
Video
Noir A8i
720p
Noir X550
Yes
Single
Noir A8i
VGA
Noir X550
2 MP
Video
Noir A8i
Noir X550
Loudspeaker
Noir A8i
Yes
Noir X550
Yes
3.5mm jack
Noir A8i
Yes
Noir X550
Yes
WLAN
Noir A8i
Wi-Fi 802.11 b/g/n, hotspot
Noir X550
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
Noir A8i
4.0, A2DP
Noir X550
4.0, A2DP
Positioning
Noir A8i
A-GPS only
Noir X550
A-GPS only
NFC
Noir A8i
No
Noir X550
No
Radio
Noir A8i
FM radio, recording
Noir X550
FM radio
USB
Noir A8i
microUSB 2.0
Noir X550
microUSB 2.0
Sensors
Noir A8i
Accelerometer, proximity, compass
Noir X550
Accelerometer
Type
Noir A8i
Li-Ion 1600 mAh battery
Noir X550
Li-Ion 1800 mAh battery
Colors
Noir A8i
Black
Noir X550
Black
Price
Noir A8i
About 90 EUR
Noir X550
About 120 EUR