Screen size
Air 4.5Winner: 4.5"+11%
Quattro X4.0"
Quick verdict
Air 4.5 leads the measured specs 9-1.
Measured wins
Air 4.5
9
spec wins
Overall winner
Ties
8
equal specs
Quattro X
1
spec wins
Screen size
Technology
Air 4.5
GSM / HSPA
Quattro X
GSM / HSPA
2G bands
Air 4.5
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Quattro X
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
Air 4.5
HSDPA 850 / 1900 / 2100
Quattro X
HSDPA 850 / 1900 / 2100
Speed
Air 4.5
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
equal specsQuattro X
HSPA 21.1/5.76 Mbps
Announced
Air 4.5
2015, January. Released 2015, February
Quattro X
2015, January. Released 2015, January
Status
Air 4.5
Discontinued
Quattro X
Discontinued
Dimensions
Air 4.5
133.9 x 66 x 8.3 mm (5.27 x 2.60 x 0.33 in)
Quattro X
123 x 64 x 9.2 mm (4.84 x 2.52 x 0.36 in)
Weight
Air 4.5
110.6 g (3.92 oz)
Quattro X
120 g (4.23 oz)
SIM
Air 4.5
Dual SIM (dual stand-by)
Quattro X
Dual SIM (dual stand-by)
Type
Air 4.5
IPS LCD
Quattro X
IPS LCD
Size
Air 4.5
4.5 inches, 55.8 cm2 (~63.1% screen-to-body ratio)
Quattro X
4.0 inches, 45.5 cm2 (~57.9% screen-to-body ratio)
Resolution
Air 4.5
480 x 854 pixels, 16:9 ratio (~218 ppi density)
Quattro X
480 x 800 pixels, 5:3 ratio (~233 ppi density)
OS
Air 4.5
Android 4.4.2 (KitKat)
Quattro X
Android 4.4.2 (KitKat)
CPU
Air 4.5
Quad-core 1.3 GHz
Quattro X
Dual-core 1.3 GHz
GPU
Air 4.5
Mali-450MP4
Quattro X
Mali-400
Card slot
Air 4.5
microSDHC
Quattro X
microSDHC
Internal
Air 4.5
8GB 1GB RAM
Quattro X
4GB 512MB RAM
Single
Air 4.5
8 MP, AF
Quattro X
5 MP
Features
Air 4.5
LED flash, HDR
Quattro X
LED flash
Video
Air 4.5
1080p@60fps
Quattro X
Yes
Single
Air 4.5
3 MP
Quattro X
VGA
Video
Air 4.5
Quattro X
Loudspeaker
Air 4.5
Yes, with stereo speakers
Quattro X
Yes, with stereo speakers
3.5mm jack
Air 4.5
Yes
Quattro X
Yes
WLAN
Air 4.5
Wi-Fi 802.11 a/b/g/n, dual-band, hotspot
Quattro X
Wi-Fi 802.11 a/b/g/n, dual-band, hotspot
Bluetooth
Air 4.5
4.0, A2DP
Quattro X
4.0, A2DP
Positioning
Air 4.5
GPS
Quattro X
GPS
NFC
Air 4.5
No
Quattro X
No
Radio
Air 4.5
FM radio
Quattro X
FM radio
USB
Air 4.5
microUSB 2.0, OTG
Quattro X
microUSB 2.0
Sensors
Air 4.5
Accelerometer
Quattro X
Accelerometer
Type
Air 4.5
Li-Ion 1700 mAh battery
Quattro X
Li-Ion 1600 mAh battery
Stand-by
Air 4.5
Up to 120 h (3G)
Quattro X
Up to 45 h (3G)
Talk time
Air 4.5
Up to 8 h (3G)
Quattro X
Up to 6 h (3G)
Music play
Air 4.5
Up to 24 h
Quattro X
Up to 24 h
Colors
Air 4.5
Black, White, Gray
Quattro X
Black, White, Blue