Comparison between:
- Chuwi Hi9 Air
- Onda V919 3G Air Z3735
- Onda V989 Air Plus
- Alldocube iWork8 Air

Brand and model

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

Chuwi Hi9 AirOnda V919 3G Air Z3735Onda V989 Air PlusAlldocube iWork8 Air
Chuwi Hi9 Air
Prices
Onda V919 3G Air Z3735Onda V989 Air PlusAlldocube iWork8 Air
Model aliasHi 9 Air
CWI546
-V989 Air+iWork 8 Air

Design

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

Width241.71 mm
24.17 cm
0.79 ft
9.52 in
239 mm
23.9 cm
0.78 ft
9.41 in
239 mm
23.9 cm
0.78 ft
9.41 in
213.38 mm
21.34 cm
0.7 ft
8.4 in
Height172 mm
17.2 cm
0.56 ft
6.77 in
169 mm
16.9 cm
0.55 ft
6.65 in
169 mm
16.9 cm
0.55 ft
6.65 in
127.9 mm
12.79 cm
0.42 ft
5.04 in
Thickness8.4 mm
0.84 cm
0.03 ft
0.33 in
8 mm
0.8 cm
0.03 ft
0.31 in
7.9 mm
0.79 cm
0.03 ft
0.31 in
9.8 mm
0.98 cm
0.03 ft
0.39 in
Weight560 g
1.23 lbs
19.75 oz
450 g
0.99 lbs
15.87 oz
450 g
0.99 lbs
15.87 oz
339 g
0.75 lbs
11.96 oz
Volume349.22 cm³
21.21 in³
323.13 cm³
19.62 in³
319.09 cm³
19.38 in³
267.45 cm³
16.24 in³
ColorsBlackGoldGoldWhite
Body materialsMetal
Plastic
MetalMetalPlastic

SIM card

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

SIM card typeMicro-SIMMicro-SIM--
Number of SIM cards21--
FeaturesDual SIM stand-by (Both cards are active. When one is busy, the other is not active)---

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
--
W-CDMAW-CDMA 850 MHz
W-CDMA 900 MHz
W-CDMA 1900 MHz
W-CDMA 2100 MHz
W-CDMA 850 MHz
W-CDMA 1900 MHz
W-CDMA 2100 MHz
--
TD-SCDMATD-SCDMA 1880-1920 MHz
TD-SCDMA 2010-2025 MHz
---
LTELTE 800 MHz
LTE 850 MHz
LTE 900 MHz
LTE 1800 MHz
LTE 1900 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE-TDD 2300 MHz (B40)
---

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
TD-SCDMA
TD-HSDPA
UMTS
EDGE
GPRS
HSPA+
--

Operating system

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

Operating system (OS)Android 8.0 OreoAndroid 4.4.2 KitKat
Android 5.1 Lollipop
Microsoft Windows 10
Android 4.4.4 KitKat
Android 5.1 Lollipop
Android 5.1 Lollipop
Microsoft Windows 10

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.

SoCMediaTek Helio X20 (MT6797)Intel Atom Z3735FAllwinner A83TIntel Atom x5-Z8300
Process technology20 nm22 nm28 nm14 nm
CPU2x 2.3 GHz ARM Cortex-A72, 4x 1.85 GHz ARM Cortex-A53, 4x 1.4 GHz ARM Cortex-A53Intel Bay TrailARM Cortex-A7Intel Cherry Trail
CPU bits64 bit64 bit32 bit64 bit
Instruction setARMv8-AIA-32 (x86), IA-64 (x64)ARMv7IA-32 (x86), IA-64 (x64)
Level 1 cache memory (L1)-24 KB + 32 KB32 KB + 32 KB24 KB + 32 KB
Level 2 cache memory (L2)-2048 KB
2 MB
512 KB
0.5 MB
2048 KB
2 MB
CPU cores10484
CPU frequency2300 MHz1830 MHz2000 MHz1840 MHz
GPUARM Mali-T880 MP4Intel HD GraphicsPowerVR SGX544Intel HD Graphics
GPU cores4---
GPU frequency780 MHz646 MHz-500 MHz
RAM capacity4 GB2 GB2 GB2 GB
RAM typeLPDDR3LPDDR3L-RSLPDDR3LPDDR3L-RS
RAM channelsDouble channelSingle channel-Single channel
RAM frequency800 MHz1333 MHz-1600 MHz

Storage

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

Storage64 GB64 GB32 GB32 GB
eMMCeMMCeMMCeMMC

Memory cards

Memory cards are used in mobile devices for expanding their external storage capacity.

TypesmicroSD
microSDHC
microSDXC
microSD
microSDHC
microSDXC
microSD
microSDHC
microSDXC
microSD
microSDHC
microSDXC

Display

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

Type/technologyIPSIGZOIPSIPS
Diagonal size10.1 in
256.54 mm
25.65 cm
9.7 in
246.38 mm
24.64 cm
9.7 in
246.38 mm
24.64 cm
8 in
203.2 mm
20.32 cm
Width8.56 in
217.55 mm
21.75 cm
7.76 in
197.1 mm
19.71 cm
7.76 in
197.1 mm
19.71 cm
6.78 in
172.31 mm
17.23 cm
Height5.35 in
135.97 mm
13.6 cm
5.82 in
147.83 mm
14.78 cm
5.82 in
147.83 mm
14.78 cm
4.24 in
107.7 mm
10.77 cm
Aspect ratio1.6:1
16:10
1.333:1
4:3
1.333:1
4:3
1.6:1
16:10
Resolution2560 x 1600 pixels2048 x 1536 pixels2048 x 1536 pixels1920 x 1200 pixels
Pixel density299 ppi
117 ppcm
264 ppi
103 ppcm
264 ppi
103 ppcm
283 ppi
111 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area71.38 %72.37 %72.37 %68.22 %
Other featuresCapacitive
Multi-touch
Capacitive
Multi-touch
Capacitive
Multi-touch
Capacitive
Multi-touch
Display manufacturer - Sharp
2.5D curved glass screen
OGS (One Glass Solution)
Full Lamination Technology
200 cd/m²
Display manufacturer - Sharp300 cd/m²
Viewing angle - 178°
-

Sensors

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

SensorsAccelerometerAccelerometerAccelerometerAccelerometer

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 modelSamsung---
Sensor typeISOCELLCMOS BSICMOSCMOS
Flash typeLED---
Image resolution4160 x 3120 pixels
12.98 MP
1600 x 1200 pixels
1.92 MP
1600 x 1200 pixels
1.92 MP
1600 x 1200 pixels
1.92 MP
Video resolution1920 x 1080 pixels
2.07 MP
--1280 x 720 pixels
0.92 MP
Video FPS30 fps--30 fps
FeaturesDigital zoom
Self-timer
AutofocusGeotagging
Panorama
HDR
Touch focus
White balance settings
Scene mode
Digital zoom
Face detection
Self-timer

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.

Image resolution2560 x 1920 pixels
4.92 MP
1600 x 1200 pixels
1.92 MP
1600 x 1200 pixels
1.92 MP
1600 x 1200 pixels
1.92 MP
Video resolution1280 x 720 pixels
0.92 MP
-640 x 480 pixels
0.31 MP
640 x 480 pixels
0.31 MP
Video FPS30 fps--30 fps

Audio

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

SpeakerLoudspeakerLoudspeaker
Stereo speakers
LoudspeakerLoudspeaker

Radio

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

RadioNoNoNoNo

Tracking/Positioning

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

Tracking/PositioningGPS
A-GPS
GLONASS
---

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 Direct
802.11b
802.11g
802.11n
Wi-Fi Display
802.11b
802.11g
802.11n
Wi-Fi Display
802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Display

Bluetooth

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

Version4.04.04.04.0
FeaturesA2DPA2DP
LE
A2DPA2DP
EDR

USB

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

Connector typeMicro USBMicro USBMicro USBMicro USB
Version2.02.03.02.0
FeaturesCharging
Mass storage
On-The-Go
Charging
Mass storage
On-The-Go
Charging
Mass storage
On-The-Go
Charging
Mass storage
On-The-Go

HDMI

The High-Definition Multimedia Interface (HDMI) is considered to be the digital alternative of the analog audio/video interface standards.

HDMI--Micro HDMI (Type D)Micro HDMI (Type D)

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 jackYesYesYesYes

Connectivity

Information about other important connectivity technologies supported by the devices.

ConnectivityComputer sync
OTA sync
Tethering
Computer sync
OTA sync
Tethering
Computer sync
OTA sync
Tethering
Computer sync
OTA sync
Tethering

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
CSS 3
HTML
HTML5
CSS 3
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
AMR
eAAC+
FLAC
M4A
MIDI
MP3
OGG
WMA
WAV
AAC
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
FLAC
MIDI
MP3
OGG
WMA
WAV
AAC
AMR
AMR-WB
eAAC+
FLAC
MIDI
OGG
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
AVI
DivX
MKV
QuickTime
MP4
WebM
WMV
Xvid
3GPP
AVI
Flash Video
H.264
H.265
MKV
QuickTime
MP4
3GPP
AVI
DivX
Flash Video
H.263
H.264
QuickTime
MP4
VC-1
WMV
Xvid
3GPP
AVI
DivX
H.263
H.264
H.265
MKV
MP4
VC-1
WMV
Xvid

Battery

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

Capacity8000 mAh7200 mAh8200 mAh3500 mAh
TypeLi-PolymerLi-PolymerLi-PolymerLi-Polymer
Charger output power5 V / 2 A--5 V / 2 A
FeaturesNon-removableNon-removableNon-removableNon-removable
--Battery life - up to 8 h-
 Chuwi Hi9 AirOnda V919 3G Air Z3735Onda V989 Air PlusAlldocube iWork8 Air