Screen size
equal specsAstro X555.5"
Nitro 55 LTE5.5"
Quick verdict
Astro X55 leads the measured specs 3-2.
Measured wins
Astro X55
3
spec wins
Overall winner
Ties
12
equal specs
Nitro 55 LTE
2
spec wins
Screen size
equal specsTechnology
Astro X55
GSM / HSPA
Nitro 55 LTE
GSM / HSPA / LTE
2G bands
Astro X55
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Nitro 55 LTE
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
Astro X55
HSDPA 850 / 1700(AWS) / 1900
Nitro 55 LTE
HSDPA 850 / 1700 / 2100
Speed
Astro X55
HSPA 21.1/5.76 Mbps
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
equal specsCPU speed
RAM
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
Nitro 55 LTE
HSPA 21.1/5.76 Mbps, LTE Cat4 150/50 Mbps
4G bands
Astro X55
-
Nitro 55 LTE
2, 4, 5, 7, 12, 17
Announced
Astro X55
2016, January. Released 2016, February
Nitro 55 LTE
2016, November. Released 2017, January
Status
Astro X55
Discontinued
Nitro 55 LTE
Discontinued
Dimensions
Astro X55
150.5 x 76.3 x 7.8 mm (5.93 x 3.00 x 0.31 in)
Nitro 55 LTE
153 x 77.6 x 7.9 mm (6.02 x 3.06 x 0.31 in)
Weight
Astro X55
174 g (6.14 oz)
Nitro 55 LTE
163 g (5.75 oz)
SIM
Astro X55
Dual SIM (Dual stand-by)
Nitro 55 LTE
Dual SIM (dual stand-by)
Type
Astro X55
IPS LCD
Nitro 55 LTE
IPS LCD
Size
Astro X55
5.5 inches, 83.4 cm2 (~72.6% screen-to-body ratio)
Nitro 55 LTE
5.5 inches, 83.4 cm2 (~70.2% screen-to-body ratio)
Resolution
Astro X55
720 x 1280 pixels, 16:9 ratio (~267 ppi density)
Nitro 55 LTE
720 x 1280 pixels, 16:9 ratio (~267 ppi density)
OS
Astro X55
Android 5.1 (Lollipop)
Nitro 55 LTE
Android 6.0 (Marshmallow)
Chipset
Astro X55
Mediatek MT6580 (28 nm)
Nitro 55 LTE
Mediatek MT6737 (28 nm)
CPU
Astro X55
Quad-core 1.5 GHz Cortex-A7
Nitro 55 LTE
Quad-core 1.3 GHz Cortex-A7
GPU
Astro X55
Mali-400MP2
Nitro 55 LTE
Mali-T720MP2
Card slot
Astro X55
microSDHC
Nitro 55 LTE
microSDHC
Internal
Astro X55
8GB 1GB RAM
Nitro 55 LTE
8GB 1GB RAM
Other
Astro X55
-
Nitro 55 LTE
eMMC 5.0
Single
Astro X55
8 MP, AF
Nitro 55 LTE
8 MP, AF
Features
Astro X55
LED flash
Nitro 55 LTE
LED flash
Video
Astro X55
720p
Nitro 55 LTE
720p@30fps
Single
Astro X55
5 MP
Nitro 55 LTE
2 MP
Video
Astro X55
Nitro 55 LTE
Loudspeaker
Astro X55
Yes
Nitro 55 LTE
Yes
3.5mm jack
Astro X55
Yes
Nitro 55 LTE
Yes
WLAN
Astro X55
Wi-Fi 802.11 b/g/n, hotspot
Nitro 55 LTE
Wi-Fi 802.11 b/g/n
Bluetooth
Astro X55
4.0, A2DP
Nitro 55 LTE
4.0, A2DP
Positioning
Astro X55
GPS
Nitro 55 LTE
GPS
NFC
Astro X55
No
Nitro 55 LTE
No
Radio
Astro X55
Stereo FM radio
Nitro 55 LTE
Stereo FM radio
USB
Astro X55
microUSB 2.0
Nitro 55 LTE
microUSB 2.0
Sensors
Astro X55
Accelerometer, proximity
Nitro 55 LTE
Fingerprint (rear-mounted), accelerometer, proximity
Type
Astro X55
Li-Ion 2200 mAh, removable
Nitro 55 LTE
Li-Ion 3000 mAh, removable
Stand-by
Astro X55
Up to 350 h
Nitro 55 LTE
Up to 280 h
Talk time
Astro X55
Up to 14 h
Nitro 55 LTE
Up to 15 h
Colors
Astro X55
Gold/White
Nitro 55 LTE
Dark Blue, White, Gold