Screen size
equal specsFire 77.0"
Kindle Fire HDX7.0"
Quick verdict
Kindle Fire HDX leads the measured specs 9-3.
Measured wins
Fire 7
3
spec wins
Ties
5
equal specs
Kindle Fire HDX
9
spec wins
Overall winner
Screen size
equal specsTechnology
Fire 7
No cellular connectivity
Kindle Fire HDX
GSM / HSPA / EVDO / LTE
2G bands
Fire 7
N/A
Kindle Fire HDX
GSM 850 / 900 / 1800 / 1900 , CDMA
GPRS
Fire 7
No
Kindle Fire HDX
Yes
EDGE
Fire 7
No
Kindle Fire HDX
Resolution
Refresh rate
Peak brightness
Pixel density
CPU speed
RAM
Storage
Main camera
Front camera
Battery
Wired charging
Weight
Thickness
IP rating
Wi‑Fi
Bluetooth
USB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
Stereo speakers
Yes
3G bands
Fire 7
-
Kindle Fire HDX
HSDPA, CDMA2000 1xEV-DO
4G bands
Fire 7
-
Kindle Fire HDX
LTE
Speed
Fire 7
-
Kindle Fire HDX
HSPA, LTE - cellular model only
Announced
Fire 7
2015, September. Released 2015, November
Kindle Fire HDX
2013, September. Released 2013, October
Status
Fire 7
Discontinued
Kindle Fire HDX
Discontinued
Dimensions
Fire 7
191 x 115 x 10.6 mm (7.52 x 4.53 x 0.42 in)
Kindle Fire HDX
186 x 128 x 9 mm (7.32 x 5.04 x 0.35 in)
Weight
Fire 7
313 g (11.04 oz)
Kindle Fire HDX
303 g (Wi-Fi)/ 311 g (4G) (10.69 oz)
SIM
Fire 7
No
Kindle Fire HDX
Micro-SIM - cellular model only
Type
Fire 7
IPS LCD
Kindle Fire HDX
IPS LCD
Size
Fire 7
7.0 inches, 137.9 cm2 (~62.8% screen-to-body ratio)
Kindle Fire HDX
7.0 inches, 142.1 cm2 (~59.7% screen-to-body ratio)
Resolution
Fire 7
600 x 1024 pixels, 16:9 ratio (~170 ppi density)
Kindle Fire HDX
1200 x 1920 pixels, 16:10 ratio (~323 ppi density)
OS
Fire 7
Customized Android 5.1 (Lollipop), Fire 5 UI
Kindle Fire HDX
Android OS (Jelly Bean - customized), Fire 3
Chipset
Fire 7
Mediatek MT8127 (28 nm)
Kindle Fire HDX
Qualcomm Snapdragon 800 (28 nm)
CPU
Fire 7
Quad-core 1.3 GHz Cortex-A7
Kindle Fire HDX
Quad-core 2.2 GHz Krait 400
GPU
Fire 7
Mali-450MP4
Kindle Fire HDX
Adreno 330
Card slot
Fire 7
microSDXC (dedicated slot)
Kindle Fire HDX
No
Internal
Fire 7
8GB 1GB RAM
Kindle Fire HDX
16GB 2GB RAM, 32GB 2GB RAM, 64GB 2GB RAM
Other
Fire 7
-
Kindle Fire HDX
eMMC 4.5
Single
Fire 7
2 MP
Kindle Fire HDX
1.3 MP
Video
Fire 7
720p
Kindle Fire HDX
720p
Single
Fire 7
VGA
Kindle Fire HDX
-
Video
Fire 7
Kindle Fire HDX
-
Other
Fire 7
-
Kindle Fire HDX
No
Loudspeaker
Fire 7
Yes
Kindle Fire HDX
Yes, with stereo speakers
3.5mm jack
Fire 7
Yes
Kindle Fire HDX
Yes
WLAN
Fire 7
Wi-Fi 802.11 b/g/n
Kindle Fire HDX
Wi-Fi 802.11 a/b/g/n, dual-band
Bluetooth
Fire 7
4.0, A2DP, LE
Kindle Fire HDX
Yes
Positioning
Fire 7
No
Kindle Fire HDX
GPS - cellular model only
NFC
Fire 7
No
Kindle Fire HDX
No
Radio
Fire 7
No
Kindle Fire HDX
No
USB
Fire 7
microUSB 2.0
Kindle Fire HDX
microUSB 2.0
Sensors
Fire 7
Accelerometer
Kindle Fire HDX
Accelerometer, gyro
Other
Fire 7
Free cloud storage for all Amazon content Text-to-Speech English-language content reader
Kindle Fire HDX
Text-to-Speech English-language content reader
Type
Fire 7
Li-Ion 2980 mAh, non-removable
Kindle Fire HDX
Li-Ion, non-removable
Talk time
Fire 7
Up to 7 h
Kindle Fire HDX
Up to 11 h
Colors
Fire 7
Black
Kindle Fire HDX
Black
Price
Fire 7
About 50 EUR
Kindle Fire HDX
About 170 EUR