Comparison between:
- Apple iPad 9.7
- Apple iPad 2 Wi-Fi
- HTC Nexus 9

Brand and model

Information about the brand, model and model alias (if any) of a specific device.

Apple iPad 9.7Apple iPad 2 Wi-FiHTC Nexus 9
Apple iPad 9.7Apple iPad 2 Wi-Fi
Prices
HTC Nexus 9
Prices
Model aliasA1823A1395Google Nexus 9
Volantis

Design

Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.

Width240 mm
24 cm
0.787 ft
9.449 in
241.2 mm
24.12 cm
0.791 ft
9.496 in
228.25 mm
22.825 cm
0.749 ft
8.986 in
Height169.5 mm
16.95 cm
0.556 ft
6.673 in
185.7 mm
18.57 cm
0.609 ft
7.311 in
153.68 mm
15.368 cm
0.504 ft
6.05 in
Thickness7.5 mm
0.75 cm
0.025 ft
0.295 in
8.8 mm
0.88 cm
0.029 ft
0.346 in
7.95 mm
0.795 cm
0.026 ft
0.313 in
Weight478 g
1.05 lbs
16.86 oz
601 g
1.32 lbs
21.2 oz
436 g
0.96 lbs
15.38 oz
Volume305.1 cm³
18.53 in³
394.16 cm³
23.94 in³
278.87 cm³
16.94 in³
ColorsGray
Silver
Gold
-Black
White
Gold
Body materialsAluminium alloy-Plastic

SIM card

The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.

SIM card typeNano-SIM-Nano-SIM
Number of SIM cards1-1

Networks

A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other.

GSMGSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
-GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
CDMACDMA 800 MHz
CDMA 1900 MHz
--
UMTSUMTS 850 MHz
UMTS 900 MHz
UMTS 1700/2100 MHz
UMTS 1900 MHz
UMTS 2100 MHz
-UMTS 850 MHz
UMTS 900 MHz
UMTS 1700/2100 MHz
UMTS 1900 MHz
UMTS 2100 MHz
LTELTE 700 MHz Class 13
LTE 700 MHz Class 17
LTE 800 MHz
LTE 850 MHz
LTE 900 MHz
LTE 1700/2100 MHz
LTE 1800 MHz
LTE 1900 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE-TDD 1900 MHz (B39)
LTE-TDD 2300 MHz (B40)
LTE-TDD 2500 MHz (B41)
LTE-TDD 2600 MHz (B38)
LTE 1900 MHz (B25)
LTE 850 MHz (B26)
LTE 700 MHz (B12)
LTE 700 MHz (B28)
LTE 800 MHz (B18)
LTE 800 MHz (B19)
LTE 700 MHz (B29)
-LTE 800 MHz
LTE 850 MHz
LTE 1700/2100 MHz
LTE 1800 MHz
LTE 1900 MHz
LTE 2100 MHz
LTE 2600 MHz

Mobile network technologies and bandwidth

Communication between devices within mobile networks is realized via various generations of network technologies, which provide different bandwidth.

Mobile network technologiesUMTS
EDGE
GPRS
HSPA+
LTE Cat 6
EV-DO Rev. A
-UMTS
EDGE
GPRS
HSPA
LTE

Operating system

Operating system is the system software, which manages and controls the functioning of the hardware components of the device.

Operating system (OS)iOS 10iOS 4
iOS 6.1.3
iOS 7.0.3
Android 5.0.1 Lollipop
Android 5.1.1 Lollipop
Android 6.0 Marshmallow
Android 7.0 Nougat
Android 7.1.1 Nougat

System on Chip (SoC)

A system on a chip (SoC) includes into a single chip some of the main hardware components of the mobile device.

SoCApple A9 APL0898Apple A5 APL0498Nvidia Tegra K1-64
Process technology14 nm45 nm28 nm
CPUApple TwisterARM Cortex-A9Denver
CPU bits64 bit32 bit64 bit
Instruction setARMv8-AARMv7ARMv8
Level 1 cache memory (L1)64 KB + 64 KB32 KB + 32 KB-
Level 2 cache memory (L2)3072 KB
3 MB
1024 KB
1 MB
-
Level 3 cache memory (L3)8192 KB
8 MB
--
CPU cores222
CPU frequency1840 MHz1000 MHz2300 MHz
GPUPowerVR GT7600PowerVR SGX543 MP2Nvidia Kepler DX11
GPU cores62192
GPU frequency--950 MHz
RAM capacity2 GB512 MB2 GB
RAM typeLPDDR4LPDDR2LPDDR3
RAM channels-Double channel-
RAM frequency-400 MHz-
M9 motion coprocessor--

Storage

Every mobile device has a built-in storage (internal memory) with a fixed capacity.

Storage32 GB
128 GB
16 GB
32 GB
64 GB
16 GB
32 GB

Display

The display of a mobile device is characterized by its technology, resolution, pixel density, diagonal length, color depth, etc.

Type/technologyIPSIPSIPS
Diagonal size9.7 in
246.38 mm
24.64 cm
9.7 in
246.38 mm
24.64 cm
8.9 in
226.06 mm
22.61 cm
Width7.76 in
197.1 mm
19.71 cm
7.76 in
197.1 mm
19.71 cm
7.12 in
180.85 mm
18.08 cm
Height5.82 in
147.83 mm
14.78 cm
5.82 in
147.83 mm
14.78 cm
5.34 in
135.64 mm
13.56 cm
Aspect ratio1.333:1
4:3
1.333:1
4:3
1.333:1
4:3
Resolution2048 x 1536 pixels1024 x 768 pixels2048 x 1536 pixels
Pixel density264 ppi
103 ppcm
132 ppi
51 ppcm
288 ppi
113 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area71.86 %65.26 %70.16 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Retina HD display
Oleophobic (lipophobic) coating
LED-backlit
Oleophobic (lipophobic) coating
LED-backlit
Corning Gorilla Glass 3

Sensors

Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.

SensorsProximity
Light
Accelerometer
Compass
Gyroscope
Barometer
Fingerprint
Accelerometer
Compass
Gyroscope
Proximity
Light
Accelerometer
Compass
Gyroscope
Hall

Rear camera

The primary camera of the mobile device is usually placed on its back and can be combined with one or more additional cameras.

Sensor model--Sony IMX219PQ Exmor R
Sensor typeCMOS BSI-CMOS BSI
Sensor size--3.67 x 2.76 mm
0.18 in
Pixel size--1.119 µm
0.001119 mm
Crop factor--9.42
Aperturef/2.4f/2.4f/2.4
Focal length and 35 mm equivalent--3.1 mm
29.21 mm *(35 mm / full frame)
Number of lenses5-5
Flash type--LED
Image resolution3264 x 2448 pixels
7.99 MP
960 x 720 pixels
0.69 MP
3280 x 2460 pixels
8.07 MP
Video resolution1920 x 1080 pixels
2.07 MP
1280 x 720 pixels
0.92 MP
1920 x 1080 pixels
2.07 MP
Video FPS30 fps30 fps30 fps
FeaturesAutofocus
Continuous shooting
Digital zoom
Geotagging
Panorama
HDR
Touch focus
Face detection
Exposure compensation
Self-timer
-Autofocus
Digital zoom
Digital image stabilization
Optical image stabilization
Geotagging
Hybrid IR filter
Sapphire crystal glass lens cover
720p @ 120 fps
--

Front camera

Modern smartphones have one or more front cameras and their positioning has led to various design concepts – pop-up camera, rotating camera, notch, punch hole, under-display camera, etc.

Sensor model--OmniVision OV9760
Sensor typeCMOS BSI-CMOS BSI
Sensor size--2.65 x 2 mm
0.13 in
Crop factor--13.04
Aperturef/2.2-f/2.4
Focal length and 35 mm equivalent--2 mm
26.09 mm *(35 mm / full frame)
Video resolution1280 x 720 pixels
0.92 MP
640 x 480 pixels
0.31 MP
1280 x 720 pixels
0.92 MP
Video FPS30 fps--
FeaturesFace unlock--
1.2 MP
HDR
Exposure compensation
Self-timer
0.3 MP1.6 MP

Audio

Information about the type of speakers and the audio technologies supported by the device.

SpeakerLoudspeaker
Stereo speakers
Loudspeaker
Stereo speakers
Loudspeaker
Stereo speakers
HAC (M3/T4) - Hearing Aid Compatibility--

Radio

The radio in a mobile device is a built-in FM radio receiver.

RadioNoNo-

Tracking/Positioning

Information about the positioning and navigation technologies supported by the device.

Tracking/PositioningGPS
A-GPS
GLONASS
Wi-Fi
Cell ID
-GPS
A-GPS
GLONASS
BeiDou

Wi-Fi

Wi-Fi is a technology that provides wireless data connections between various devices within a short range.

Wi-Fi802.11a
802.11b
802.11g
802.11n
802.11n 5GHz
802.11ac
Dual band
Wi-Fi Hotspot
802.11a
802.11b
802.11g
802.11n
Dual band
802.11a
802.11b
802.11g
802.11n
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
MiMO-2x2 MiMO

Bluetooth

Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.

Version4.22.14.1
FeaturesA2DP
LE
A2DP
EDR
A2DP

USB

The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.

Connector type--Micro USB
Version2.02.02.0
FeaturesCharging
Mass storage
Proprietary
Charging
Proprietary
Charging
Mass storage

Headphone jack

The headphone jack is an audio phone connector, a.k.a. an audio jack. The most widely used one in mobile devices is the 3.5 mm headphone jack.

Headphone jackYesYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
Computer sync
OTA sync
TV-Out
Computer sync
OTA sync
Tethering
DLNA
NFC

Browser

A web browser is a software application for accessing, fetching, displaying and navigating through information on the World Wide Web.

BrowserHTML
HTML5
CSS 3
HTML
HTML5
HTML
HTML5
CSS 3

Audio file formats/codecs

Mobile devices support various audio file formats and codecs, which respectively store and code/decode digital audio data.

Audio file formats/codecsAAC
eAAC+
M4A
MP3
WAV
Apple Lossless
AAX+
AAX
AAC
M4A
MP3
AMR
aptX
eAAC+
FLAC
MIDI
MP3
WMA
WAV

Video file formats/codecs

Mobile devices support various video file formats and codecs, which respectively store and code/decode digital video data.

Video file formats/codecs3GPP
H.263
H.264
H.265
QuickTime
MPEG-4
H.264
QuickTime
MPEG-4
3GPP
DivX
H.263
H.264
MP4
WMV

Battery

The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.

Capacity8827 mAh6930 mAh6700 mAh
TypeLi-PolymerLi-PolymerLi-Polymer
3G stand-by time--720 h
43200 min
30 days
4G stand-by time--720 h
43200 min
30 days
FeaturesNon-removableNon-removableNon-removable
32.4 Wh
Battery life - up to 10 h
Battery life - up to 10 h
Stand by time - up to 720 h
-

Specific Absorption Rate (SAR)

The SAR rating shows the amount of electromagnetic radiation absorbed by the human body when using a mobile device, expressed in W/kg.

Body SAR (EU)0.99 W/kg0.76 W/kg-
Body SAR (USA)1.18 W/kg0.99 W/kg-

Additional features

Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.

Additional features--425 g (Wi-Fi version)
 Apple iPad 9.7Apple iPad 2 Wi-FiHTC Nexus 9