Screen size
Noir S2Winner: 5.0"+6%
Noir X5504.7"
Quick verdict
Noir S2 leads the measured specs 3-2.
Measured wins
Noir S2
3
spec wins
Overall winner
Ties
11
equal specs
Noir X550
2
spec wins
Screen size
Technology
Noir S2
GSM / HSPA
Noir X550
GSM / HSPA
2G bands
Noir S2
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Noir X550
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
Noir S2
HSDPA 900 / 2100
Noir X550
HSDPA 900 / 2100
Speed
Noir S2
HSPA 21.1/5.76 Mbps
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
CPU speed
equal specsRAM
equal specsStorage
equal specsMain camera
equal specsFront 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 S2
2015, November. Released 2015, November
Noir X550
2015, January. Released 2015, January
Status
Noir S2
Discontinued
Noir X550
Discontinued
Dimensions
Noir S2
142.5 x 71 x 9.3 mm (5.61 x 2.80 x 0.37 in)
Noir X550
139.1 x 69.2 x 7.9 mm (5.48 x 2.72 x 0.31 in)
Weight
Noir S2
-
Noir X550
-
SIM
Noir S2
Dual SIM (Micro-SIM, dual stand-by)
Noir X550
Dual SIM
Type
Noir S2
IPS LCD
Noir X550
IPS LCD
Size
Noir S2
5.0 inches, 68.9 cm2 (~68.1% screen-to-body ratio)
Noir X550
4.7 inches, 60.9 cm2 (~63.3% screen-to-body ratio)
Resolution
Noir S2
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
Noir X550
720 x 1280 pixels, 16:9 ratio (~312 ppi density)
OS
Noir S2
Android 5.1 (Lollipop)
Noir X550
Android 4.4.2 (KitKat)
Chipset
Noir S2
Mediatek MT6580 (28 nm)
Noir X550
Mediatek MT6582 (28 nm)
CPU
Noir S2
Quad-core 1.3 GHz Cortex-A7
Noir X550
Quad-core 1.3 GHz Cortex-A7
GPU
Noir S2
Mali-400MP2
Noir X550
Mali-400MP2
Card slot
Noir S2
microSDHC
Noir X550
microSDHC
Internal
Noir S2
8GB 1GB RAM
Noir X550
8GB 1GB RAM
Single
Noir S2
8 MP, AF
Noir X550
8 MP
Features
Noir S2
LED flash, HDR, panorama
Noir X550
LED flash
Video
Noir S2
1080p@30fps
Noir X550
Yes
Single
Noir S2
5 MP
Noir X550
2 MP
Video
Noir S2
Noir X550
Loudspeaker
Noir S2
Yes
Noir X550
Yes
3.5mm jack
Noir S2
Yes
Noir X550
Yes
WLAN
Noir S2
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Noir X550
Wi-Fi 802.11 b/g/n, hotspot
Bluetooth
Noir S2
4.0, A2DP
Noir X550
4.0, A2DP
Positioning
Noir S2
GPS
Noir X550
A-GPS only
NFC
Noir S2
No
Noir X550
No
Radio
Noir S2
FM radio
Noir X550
FM radio
USB
Noir S2
microUSB 2.0
Noir X550
microUSB 2.0
Sensors
Noir S2
Accelerometer, proximity, compass
Noir X550
Accelerometer
Type
Noir S2
Li-Ion 2000 mAh, removable
Noir X550
Li-Ion 1800 mAh battery
Stand-by
Noir S2
Up to 336 h (2G) / Up to 336 h (3G)
Noir X550
-
Talk time
Noir S2
Up to 23 h (2G) / Up to 20 h (3G)
Noir X550
-
Colors
Noir S2
Black
Noir X550
Black
Models
Noir S2
S2
Noir X550
-
Price
Noir S2
-
Noir X550
About 120 EUR