Comparison between:
- Asus ZenFone 4 A450CG
- Asus ZenFone 5 A500KL
- Asus PadFone X
- Asus PadFone S

Brand and model

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

Asus ZenFone 4 A450CGAsus ZenFone 5 A500KLAsus PadFone XAsus PadFone S
Asus ZenFone 4 A450CGAsus ZenFone 5 A500KLAsus PadFone X
Prices
Asus PadFone S
Model aliasA450CGA500KL-PF500KL

Design

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

Width67.9 mm
6.79 cm
0.223 ft
2.673 in
72.8 mm
7.28 cm
0.239 ft
2.866 in
72.49 mm
7.249 cm
0.238 ft
2.854 in
72.46 mm
7.246 cm
0.238 ft
2.853 in
Height136.8 mm
13.68 cm
0.449 ft
5.386 in
148.2 mm
14.82 cm
0.486 ft
5.835 in
143.93 mm
14.393 cm
0.472 ft
5.667 in
143.93 mm
14.393 cm
0.472 ft
5.667 in
Thickness11.3 mm
1.13 cm
0.037 ft
0.445 in
10.34 mm
1.034 cm
0.034 ft
0.407 in
9.98 mm
0.998 cm
0.033 ft
0.393 in
9.98 mm
0.998 cm
0.033 ft
0.393 in
Weight134 g
0.3 lbs
4.73 oz
145 g
0.32 lbs
5.11 oz
150 g
0.33 lbs
5.29 oz
150 g
0.33 lbs
5.29 oz
Volume104.96 cm³
6.37 in³
111.56 cm³
6.77 in³
104.13 cm³
6.32 in³
104.08 cm³
6.32 in³
ColorsBlack
White
Red
Yellow
Blue
Black
White
Red
Purple
Gold
BlackBlack
White
Body materials---Plastic
Certification---IPX2

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-SIMMicro-SIMMicro-SIM
Number of SIM cards1111
FeaturesDual SIM optional (A variant of the model with two SIM card slots is available)Dual SIM optional (A variant of the model with two SIM card slots is available)--

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
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
GSM 850 MHz
GSM 900 MHz
GSM 1800 MHz
GSM 1900 MHz
UMTSUMTS 850 MHz
UMTS 900 MHz
UMTS 1900 MHz
UMTS 2100 MHz
UMTS 850 MHz
UMTS 900 MHz
UMTS 1900 MHz
UMTS 2100 MHz
UMTS 850 MHz
UMTS 900 MHz
UMTS 1900 MHz
UMTS 2100 MHz
UMTS 900 MHz
UMTS 1900 MHz
UMTS 2100 MHz
LTE-LTE 900 MHz
LTE 1800 MHz
LTE 2600 MHz
LTE 700 MHz (B28)
LTE 700 MHz Class 17
LTE 800 MHz
LTE 900 MHz
LTE 1800 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE 900 MHz
LTE 1800 MHz
LTE 1900 MHz
LTE 2100 MHz
LTE 2600 MHz
LTE 700 MHz (B28)

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 Class 12
HSPA+
UMTS
EDGE
GPRS Class 12
HSPA+
LTE Cat 4
UMTS
EDGE
GPRS Class 12
HSPA+
LTE Cat 4
UMTS
EDGE
GPRS Class 12
HSPA+
LTE Cat 4

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 4.4.2 KitKatAndroid 4.4.2 KitKatAndroid 4.4.2 KitKatAndroid 4.4.2 KitKat
Android 6.0 Marshmallow
User interface (UI)ZenUIZenUI-ZenUI

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.

SoCIntel Atom Z2520Qualcomm Snapdragon 400 MSM8926Qualcomm Snapdragon 800 MSM8974ABQualcomm Snapdragon 801 MSM8974AB
Process technology32 nm28 nm28 nm28 nm
CPUIntel Saltwell HTARM Cortex-A7Krait 400Krait 400
CPU bits32 bit32 bit32 bit32 bit
Instruction setIA-32 (x86)ARMv7ARMv7ARMv7
Level 0 cache memory (L0)--4 KB + 4 KB4 KB + 4 KB
Level 1 cache memory (L1)24 KB + 32 KB16 KB + 16 KB16 KB + 16 KB16 KB + 16 KB
Level 2 cache memory (L2)512 KB
0.5 MB
1024 KB
1 MB
2048 KB
2 MB
2048 KB
2 MB
CPU cores2444
CPU frequency1200 MHz1200 MHz2300 MHz2300 MHz
GPUPowerVR SGX544 MP2Qualcomm Adreno 305Qualcomm Adreno 330Qualcomm Adreno 330
GPU cores2144
GPU frequency300 MHz-550 MHz578 MHz
RAM capacity1 GB2 GB2 GB2 GB
RAM typeLPDDR2LPDDR3LPDDR3LPDDR3
RAM channelsDouble channel-Double channelDouble channel
RAM frequency533 MHz-933 MHz933 MHz

Storage

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

Storage8 GB16 GB
32 GB
16 GB16 GB
eMMCeMMC--

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/technologyIPSIPSSuper IPS+ LCDSuper IPS+ LCD
Diagonal size4.5 in
114.3 mm
11.43 cm
5 in
127 mm
12.7 cm
5 in
127 mm
12.7 cm
5 in
127 mm
12.7 cm
Width2.2 in
56 mm
5.6 cm
2.45 in
62.26 mm
6.23 cm
2.45 in
62.26 mm
6.23 cm
2.45 in
62.26 mm
6.23 cm
Height3.92 in
99.64 mm
9.96 cm
4.36 in
110.69 mm
11.07 cm
4.36 in
110.69 mm
11.07 cm
4.36 in
110.69 mm
11.07 cm
Aspect ratio1.779:11.778:1
16:9
1.778:1
16:9
1.778:1
16:9
Resolution480 x 854 pixels720 x 1280 pixels1080 x 1920 pixels1080 x 1920 pixels
Pixel density218 ppi
85 ppcm
294 ppi
115 ppcm
441 ppi
173 ppcm
441 ppi
173 ppcm
Color depth24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
24 bit
16777216 colors
Display area60.27 %64.09 %66.27 %66.3 %
Other featuresCapacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Capacitive
Multi-touch
Scratch resistant
Corning Gorilla Glass 3
Anti-fingerprint coating
Corning Gorilla Glass 3
LED-backlit
Corning Gorilla Glass 3Corning Gorilla Glass 3
Oleophobic (lypophobic) coating

Sensors

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

SensorsProximity
Accelerometer
Compass
Proximity
Light
Accelerometer
Compass
Hall
Proximity
Light
Accelerometer
Compass
Gyroscope
Proximity
Light
Accelerometer
Compass
Gyroscope

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 type-CMOS BSICMOS BSICMOS BSI
Aperturef/2f/2f/2f/2
Number of lenses-555
Flash typeLEDLEDLEDLED
Image resolution3264 x 2448 pixels
7.99 MP
3264 x 2448 pixels
7.99 MP
4128 x 3096 pixels
12.78 MP
4160 x 3120 pixels
12.98 MP
Video resolution1920 x 1080 pixels
2.07 MP
1920 x 1080 pixels
2.07 MP
3840 x 2160 pixels
8.29 MP
3840 x 2160 pixels
8.29 MP
Video FPS30 fps30 fps30 fps30 fps
FeaturesAutofocus
Continuous shooting
Digital zoom
Geotagging
HDR
Touch focus
Face detection
Scene mode
Autofocus
Digital zoom
Digital image stabilization
Geotagging
Panorama
Touch focus
Autofocus
Continuous shooting
Digital zoom
Geotagging
Touch focus
Face detection
Autofocus
Continuous shooting
Geotagging
Touch focus
Face detection
White balance settings
ISO settings
Exposure compensation
Self-timer
Scene mode

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.

Aperturef/2.8f/2.8--
Image resolution640 x 480 pixels
0.31 MP
1600 x 1200 pixels
1.92 MP
1600 x 1200 pixels
1.92 MP
1600 x 1200 pixels
1.92 MP
Video resolution640 x 480 pixels
0.31 MP
1280 x 720 pixels
0.92 MP
1920 x 1080 pixels
2.07 MP
1280 x 720 pixels
0.92 MP
Video FPS30 fps30 fps30 fps30 fps

Audio

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

SpeakerLoudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece
Loudspeaker
Earpiece

Radio

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

RadioYesYesYesYes

Tracking/Positioning

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

Tracking/PositioningGPS
A-GPS
GLONASS
GPS
A-GPS
GLONASS
GPS
A-GPS
GLONASS
GPS
A-GPS
GLONASS

Wi-Fi

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

Wi-Fi802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Direct
802.11b
802.11g
802.11n
Wi-Fi Hotspot
Wi-Fi Direct
802.11a
802.11b
802.11g
802.11n
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct
802.11a
802.11b
802.11g
802.11n
802.11ac
Dual band
Wi-Fi Hotspot
Wi-Fi Direct

Bluetooth

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

Version4.04.04.04.0
FeaturesA2DP
EDR
A2DP
EDR
A2DPA2DP

USB

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

Connector typeMicro USBMicro USBMicro USBMicro USB
Version2.02.02.02.0
FeaturesCharging
Mass storage
Charging
Mass storage
Charging
Host
Mass storage
Proprietary
On-The-Go
Charging
Host
Mass storage
Proprietary
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 USB to HDMI MHL adapterMicro USB to HDMI MHL adapter

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
NFC
Computer sync
OTA sync
Tethering
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
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/codecseAAC+
MP3
WMA
WAV
eAAC+
MP3
WMA
WAV
3GPP
AAC
AAC+
eAAC+
MP3
WAV
3GPP
AAC
AAC+
eAAC+
MP3
OGG
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/codecsH.264
H.265
MPEG-4
H.263
H.264
MPEG-4
H.263
H.264
MPEG-4
WMV
H.263
H.264
MPEG-4
VP8
VP9
WMV

Battery

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

Capacity1750 mAh2110 mAh2300 mAh2300 mAh
TypeLi-PolymerLi-PolymerLi-PolymerLi-Polymer
2G talk time-20 h 36 min
20.6 h
1236 min
0.9 days
20 h
1200 min
0.8 days
30 h
1800 min
1.3 days
2G stand-by time-395 h
23700 min
16.5 days
-417 h
25020 min
17.4 days
3G talk time-20 h 36 min
20.6 h
1236 min
0.9 days
20 h
1200 min
0.8 days
22 h
1320 min
0.9 days
3G stand-by time-395 h
23700 min
16.5 days
456 h
27360 min
19 days
528 h
31680 min
22 days
4G stand-by time---286 h
17160 min
11.9 days
FeaturesNon-removableNon-removableWireless charging
Non-removable
Non-removable

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.

Head SAR (EU)-0.683 W/kg--
Body SAR (EU)-0.586 W/kg--

Additional features

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

Additional features--myDP docking connector
Attachable Asus Tablet dock station
myDP docking connector
Attachable Asus Tablet dock station
 Asus ZenFone 4 A450CGAsus ZenFone 5 A500KLAsus PadFone XAsus PadFone S