Screen size
Astro X55Winner: 5.5"+9.1%
Nitro 5M5.0"
Quick verdict
Astro X55 leads the measured specs 8-1.
Measured wins
Astro X55
8
spec wins
Overall winner
Ties
8
equal specs
Nitro 5M
1
spec wins
Screen size
Technology
Astro X55
GSM / HSPA
Nitro 5M
GSM / HSPA
2G bands
Astro X55
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Nitro 5M
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
Astro X55
HSDPA 850 / 1700(AWS) / 1900
Nitro 5M
HSDPA 850 / 1900
Speed
Astro X55
HSPA 21.1/5.76 Mbps
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
equal specsStorage
equal specsMain camera
Front camera
Battery
equal specsWired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
Nitro 5M
HSPA 21.1/5.76 Mbps
Announced
Astro X55
2016, January. Released 2016, February
Nitro 5M
2016, September. Released 2016, December
Status
Astro X55
Discontinued
Nitro 5M
Discontinued
Dimensions
Astro X55
150.5 x 76.3 x 7.8 mm (5.93 x 3.00 x 0.31 in)
Nitro 5M
144.2 x 73 x 10.3 mm (5.68 x 2.87 x 0.41 in)
Weight
Astro X55
174 g (6.14 oz)
Nitro 5M
148 g (5.22 oz)
SIM
Astro X55
Dual SIM (Dual stand-by)
Nitro 5M
Dual SIM (dual stand-by)
Type
Astro X55
IPS LCD
Nitro 5M
IPS LCD
Size
Astro X55
5.5 inches, 83.4 cm2 (~72.6% screen-to-body ratio)
Nitro 5M
5.0 inches, 68.9 cm2 (~65.4% screen-to-body ratio)
Resolution
Astro X55
720 x 1280 pixels, 16:9 ratio (~267 ppi density)
Nitro 5M
480 x 854 pixels, 16:9 ratio (~196 ppi density)
OS
Astro X55
Android 5.1 (Lollipop)
Nitro 5M
Android 6.0 (Marshmallow)
Chipset
Astro X55
Mediatek MT6580 (28 nm)
Nitro 5M
Spreadtrum SC7731
CPU
Astro X55
Quad-core 1.5 GHz Cortex-A7
Nitro 5M
Quad-core 1.2 GHz Cortex-A7
GPU
Astro X55
Mali-400MP2
Nitro 5M
Mali-400
Card slot
Astro X55
microSDHC
Nitro 5M
microSDHC
Internal
Astro X55
8GB 1GB RAM
Nitro 5M
8GB 1GB RAM
Single
Astro X55
8 MP, AF
Nitro 5M
5 MP
Features
Astro X55
LED flash
Nitro 5M
LED flash
Video
Astro X55
720p
Nitro 5M
Yes
Single
Astro X55
5 MP
Nitro 5M
2 MP
Video
Astro X55
Nitro 5M
Loudspeaker
Astro X55
Yes
Nitro 5M
Yes
3.5mm jack
Astro X55
Yes
Nitro 5M
Yes
WLAN
Astro X55
Wi-Fi 802.11 b/g/n, hotspot
Nitro 5M
Wi-Fi 802.11 b/g/n
Bluetooth
Astro X55
4.0, A2DP
Nitro 5M
2.1, EDR
Positioning
Astro X55
GPS
Nitro 5M
GPS
NFC
Astro X55
No
Nitro 5M
No
Radio
Astro X55
Stereo FM radio
Nitro 5M
Stereo FM radio
USB
Astro X55
microUSB 2.0
Nitro 5M
microUSB 2.0
Sensors
Astro X55
Accelerometer, proximity
Nitro 5M
Accelerometer, proximity
Type
Astro X55
Li-Ion 2200 mAh, removable
Nitro 5M
Li-Ion 2200 mAh, removable
Stand-by
Astro X55
Up to 350 h
Nitro 5M
Up to 300 h
Talk time
Astro X55
Up to 14 h
Nitro 5M
Up to 8 h
Colors
Astro X55
Gold/White
Nitro 5M
Black, BLue, Gold, Red