Comparison between:
- Asus ZenFone 4 Max ZC550TL
- Asus ZenFone 4 Max ZC520KL
- Asus ZenFone 4 Max SD430
- Asus ZenFone 4 Max Pro SD425
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Asus ZenFone 4 Max ZC550TL | Asus ZenFone 4 Max ZC520KL | Asus ZenFone 4 Max SD430 | Asus ZenFone 4 Max Pro SD425 | |
 |  |  |  | |
| Model alias | ZenFone 4 Max Plus ZC550TL | ZC520KL | ZenFone 4 Max Octa Core ZC554KL | ZenFone 4 Max Pro Quad Core ZC554KL |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 76.6 mm 7.66 cm 0.251 ft 3.016 in | 73.3 mm 7.33 cm 0.24 ft 2.886 in | 76.9 mm 7.69 cm 0.252 ft 3.028 in | 76.9 mm 7.69 cm 0.252 ft 3.028 in |
| Height | 154.5 mm 15.45 cm 0.507 ft 6.083 in | 150.5 mm 15.05 cm 0.494 ft 5.925 in | 154 mm 15.4 cm 0.505 ft 6.063 in | 154 mm 15.4 cm 0.505 ft 6.063 in |
| Thickness | 8.85 mm 0.885 cm 0.029 ft 0.348 in | 8.73 mm 0.873 cm 0.029 ft 0.344 in | 8.9 mm 0.89 cm 0.029 ft 0.35 in | 8.9 mm 0.89 cm 0.029 ft 0.35 in |
| Weight | 200 g 0.44 lbs 7.05 oz | 156 g 0.34 lbs 5.5 oz | 181 g 0.4 lbs 6.38 oz | 181 g 0.4 lbs 6.38 oz |
| Volume | 104.74 cm³ 6.36 in³ | 96.31 cm³ 5.85 in³ | 105.4 cm³ 6.4 in³ | 105.4 cm³ 6.4 in³ |
| Colors | Gold Black | Black Rose-gold Gold | Gold Pink Black | Gold Black Pink |
| Body materials | Metal | Metal | Metal | Metal |
SIM card
The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.
| SIM card type | Nano-SIM Nano-SIM / microSD | Nano-SIM | Nano-SIM | Nano-SIM |
| Number of SIM cards | 2 | 2 | 2 | 2 |
| - | SIM1 - 2G; 3G; 4G SIM2 - 2G; 3G; 4G | SIM1 - 2G; 3G; 4G SIM2 - 2G; 3G; 4G | SIM1 - 2G; 3G; 4G SIM2 - 2G; 3G; 4G |
Networks
A mobile (cellular) network is a radio system, which allows a large number of mobile devices to communicate with each other.
| GSM | 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 | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz |
| CDMA | CDMA 800 MHz | - | - | - |
| TD-SCDMA | TD-SCDMA 1880-1920 MHz TD-SCDMA 2010-2025 MHz | - | - | TD-SCDMA 1880-1920 MHz TD-SCDMA 2010-2025 MHz |
| UMTS | UMTS 900 MHz UMTS 2100 MHz | UMTS 850 MHz UMTS 900 MHz UMTS 2100 MHz | UMTS 800 MHz UMTS 850 MHz UMTS 900 MHz UMTS 1700/2100 MHz UMTS 1900 MHz UMTS 2100 MHz | UMTS 800 MHz UMTS 850 MHz UMTS 900 MHz UMTS 1700/2100 MHz UMTS 1900 MHz UMTS 2100 MHz |
| LTE | LTE 800 MHz LTE 850 MHz LTE 900 MHz LTE 1800 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 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 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) LTE 700 MHz (B12) LTE 800 MHz (B18) LTE 800 MHz (B19) LTE 850 MHz (B26) LTE 700 MHz (B28) | 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 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) LTE 800 MHz (B18) LTE 850 MHz (B26) LTE 700 MHz (B12) LTE 800 MHz (B19) LTE 700 MHz (B28) | 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 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) LTE 800 MHz (B18) LTE 850 MHz (B26) LTE 700 MHz (B12) LTE 800 MHz (B19) 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 technologies | UMTS EDGE GPRS HSPA+ LTE Cat 4 EV-DO Rev. A TD-SCDMA TD-HSDPA | UMTS EDGE GPRS HSPA+ LTE Cat 4 | UMTS EDGE GPRS HSPA+ LTE Cat 4 | UMTS EDGE GPRS HSPA+ LTE Cat 4 TD-SCDMA TD-HSDPA |
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 7.0 Nougat | Android 7.1.1 Nougat Android 9.0 Pie | Android 7.0 Nougat Android 9.0 Pie | Android 7.0 Nougat Android 9.0 Pie |
| User interface (UI) | ZenUI 4.0 | ZenUI 4.0 | ZenUI 4.0 | ZenUI 4.0 |
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.
| SoC | MediaTek MT6750 | Qualcomm Snapdragon 425 MSM8917 | Qualcomm Snapdragon 430 MSM8937 | Qualcomm Snapdragon 425 MSM8917 |
| Process technology | 28 nm | 28 nm | 28 nm | 28 nm |
| CPU | 4x 1.5 GHz ARM Cortex-A53, 4x 1.0 GHz ARM Cortex-A53 | ARM Cortex-A53 | 4x 1.4 GHz ARM Cortex-A53, 4x 1.1 GHz ARM Cortex-A53 | ARM Cortex-A53 |
| CPU bits | 64 bit | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv8-A | ARMv8 | ARMv8 | ARMv8 |
| Level 1 cache memory (L1) | 32 KB + 32 KB | - | - | - |
| Level 2 cache memory (L2) | 512 KB 0.5 MB | - | - | - |
| CPU cores | 8 | 4 | 8 | 4 |
| CPU frequency | 1500 MHz | 1400 MHz | 1400 MHz | 1400 MHz |
| GPU | ARM Mali-T860 MP2 | Qualcomm Adreno 308 | Qualcomm Adreno 505 | Qualcomm Adreno 308 |
| GPU cores | 2 | - | - | - |
| GPU frequency | 520 MHz | 500 MHz | - | 500 MHz |
| RAM capacity | 3 GB | 3 GB | 2 GB 3 GB 4 GB | 2 GB 3 GB |
| RAM type | LPDDR3 | LPDDR3 | LPDDR3 | LPDDR3 |
| RAM channels | Single channel | Single channel | Single channel | Single channel |
| RAM frequency | 667 MHz | 800 MHz | 800 MHz | 800 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 32 GB | 16 GB 32 GB | 16 GB 32 GB 64 GB | 32 GB |
| - | eMMC | eMMC | eMMC |
Memory cards
Memory cards are used in mobile devices for expanding their external storage capacity.
| Types | microSD 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/technology | IPS | IPS | IPS | IPS |
| Diagonal size | 5.5 in 139.7 mm 13.97 cm | 5.2 in 132.08 mm 13.21 cm | 5.5 in 139.7 mm 13.97 cm | 5.5 in 139.7 mm 13.97 cm |
| Width | 2.7 in 68.49 mm 6.85 cm | 2.55 in 64.75 mm 6.48 cm | 2.7 in 68.49 mm 6.85 cm | 2.7 in 68.49 mm 6.85 cm |
| Height | 4.79 in 121.76 mm 12.18 cm | 4.53 in 115.12 mm 11.51 cm | 4.79 in 121.76 mm 12.18 cm | 4.79 in 121.76 mm 12.18 cm |
| Aspect ratio | 1.778:1 16:9 | 1.778:1 16:9 | 1.778:1 16:9 | 1.778:1 16:9 |
| Resolution | 720 x 1280 pixels | 720 x 1280 pixels | 720 x 1280 pixels | 720 x 1280 pixels |
| Pixel density | 267 ppi 104 ppcm | 282 ppi 110 ppcm | 267 ppi 104 ppcm | 267 ppi 104 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 70.69 % | 67.79 % | 70.64 % | 70.64 % |
| Other features | Capacitive Multi-touch | Capacitive Multi-touch | Capacitive Multi-touch | Capacitive Multi-touch |
| 2.5D curved glass screen Bluelight Filter | 2.5D curved glass screen Bluelight Filter | 2.5D curved glass screen Bluelight Filter 450 cd/m² | 2.5D curved glass screen Bluelight Filter 450 cd/m² |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Fingerprint | Proximity Light Accelerometer Compass Fingerprint | Proximity Light Accelerometer Compass Gyroscope Fingerprint | Proximity Light Accelerometer Compass Gyroscope Fingerprint |
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 | CMOS | CMOS | CMOS |
| Aperture | f/2 | f/2 | f/2 | f/2 |
| Focal length and 35 mm equivalent | - | 3.4 mm 25 mm *(35 mm / full frame) | 26 mm *(35 mm / full frame) | 25 mm *(35 mm / full frame) |
| Field of view | 80 ° | 80 ° | 80 ° | 79 ° |
| Flash type | Dual LED | Dual LED | Dual LED | Dual LED |
| Image resolution | 4160 x 3120 pixels 12.98 MP | 4160 x 3120 pixels 12.98 MP | 4160 x 3120 pixels 12.98 MP | 4608 x 3456 pixels 15.93 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP |
| Video FPS | 30 fps | 30 fps | 30 fps | 30 fps |
| Features | Autofocus Continuous autofocus Continuous shooting Digital zoom Digital image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Phase detection autofocus (PDAF) | Autofocus Continuous autofocus Continuous shooting Digital zoom Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Phase detection autofocus (PDAF) | Autofocus Continuous autofocus Continuous shooting Digital zoom Digital image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Phase detection autofocus (PDAF) | Autofocus Continuous autofocus Continuous shooting Digital zoom Digital image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Phase detection autofocus (PDAF) |
| Secondary rear camera - 8 MP Angle of view - 120° (#2) | Secondary rear camera - 5 MP Aperture size - f/2.2 (#2) Focal length (35 mm equivalent) - 17.9 mm (#2) Angle of view - 120° (#2) | Secondary rear camera Angle of view - 120° (#2) Focal length (35 mm equivalent) - 12 mm (#2) | Secondary rear camera - 5 MP Focal length (35 mm equivalent) - 12 mm (#2) Angle of view - 120° (#2) |
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.
| Aperture | f/2.2 | f/2.2 | f/2.2 | f/2 |
| Focal length and 35 mm equivalent | - | 4.7 mm 24 mm *(35 mm / full frame) | 24 mm *(35 mm / full frame) | 26 mm *(35 mm / full frame) |
| Field of view | 85 ° | 85 ° | 85 ° | 76 ° |
| Auxiliary light | LED | LED | LED | LED |
| Image resolution | 2592 x 1944 pixels 5.04 MP | 3264 x 2448 pixels 7.99 MP | 3264 x 2448 pixels 7.99 MP | 4608 x 3456 pixels 15.93 MP |
| Video resolution | 1280 x 720 pixels 0.92 MP | 1280 x 720 pixels 0.92 MP | 1280 x 720 pixels 0.92 MP | 1920 x 1080 pixels 2.07 MP |
| Video FPS | 30 fps | 30 fps | 30 fps | 30 fps |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece | Loudspeaker Earpiece | Loudspeaker Earpiece | Loudspeaker Earpiece |
| - | - | DTS NXP Smart PA | DTS NXP Smart PA |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | Yes | Yes | Yes | Yes |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | GPS A-GPS GLONASS BeiDou | GPS A-GPS GLONASS BeiDou | GPS A-GPS GLONASS BeiDou | 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-Fi | 802.11b 802.11g 802.11n Wi-Fi Hotspot Wi-Fi Direct | 802.11b 802.11g 802.11n Wi-Fi Hotspot Wi-Fi Direct | 802.11b 802.11g 802.11n Wi-Fi Hotspot Wi-Fi Direct | 802.11b 802.11g 802.11n Wi-Fi Hotspot Wi-Fi Direct |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 4.0 | 4.1 | 4.1 | 4.1 |
| Features | A2DP EDR | A2DP EDR | A2DP EDR | A2DP EDR |
USB
The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.
| Connector type | Micro USB | Micro USB | Micro USB | Micro USB |
| Version | 2.0 | 2.0 | 2.0 | 2.0 |
| Features | Charging Mass storage On-The-Go | Charging Mass storage On-The-Go | Charging Mass storage On-The-Go | Charging Mass storage On-The-Go |
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 jack | Yes | Yes | Yes | Yes |
Connectivity
Information about other important connectivity technologies supported by the devices.
| Connectivity | Computer sync OTA sync Tethering VoLTE | Computer sync OTA sync Tethering VoLTE | Computer sync OTA sync Tethering VoLTE | Computer sync OTA sync Tethering VoLTE |
Browser
A web browser is a software application for accessing, fetching, displaying and navigating through information on the World Wide Web.
| Browser | HTML 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/codecs | AAC AAC+ AMR AMR-WB eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AAC+ AMR AMR-WB eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AAC+ AMR AMR-WB eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AAC+ AMR AMR-WB eAAC+ FLAC MIDI MP3 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/codecs | 3GPP AVI MKV MP4 WebM WMV Xvid | 3GPP AVI MKV MP4 WebM WMV Xvid | 3GPP AVI MKV MP4 WebM WMV Xvid | 3GPP AVI MKV MP4 WebM 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.
| Capacity | 5000 mAh | 4100 mAh | 5000 mAh | 5000 mAh |
| Type | Li-Polymer | Li-Polymer | Li-Polymer | Li-Polymer |
| 2G talk time | 40 h 2400 min 1.7 days | 31 h 1860 min 1.3 days | 40 h 2400 min 1.7 days | 40 h 2400 min 1.7 days |
| 2G stand-by time | - | 8880 h 532800 min 370 days | 1100 h 66000 min 45.8 days | 1100 h 66000 min 45.8 days |
| 3G talk time | 40 h 2400 min 1.7 days | 31 h 1860 min 1.3 days | 40 h 2400 min 1.7 days | 40 h 2400 min 1.7 days |
| 3G stand-by time | - | 888 h 53280 min 37 days | 1100 h 66000 min 45.8 days | 1100 h 66000 min 45.8 days |
| 4G stand-by time | - | 888 h 53280 min 37 days | 1100 h 66000 min 45.8 days | 1100 h 66000 min 45.8 days |
| Charger output power | 5 V / 2 A | 5 V / 2 A | 5 V / 2 A | 5 V / 2 A |
| Features | Fast charging Non-removable | Non-removable | Fast charging Non-removable | Fast charging 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) | 0.7 W/kg | 0.681 W/kg | 0.302 W/kg | - |
| Body SAR (EU) | 1 W/kg | 1.49 W/kg | 1.2 W/kg | - |
| Head SAR (USA) | - | 1.19 W/kg | 0.74 W/kg | - |
| Body SAR (USA) | - | 0.96 W/kg | 1.08 W/kg | - |
| Asus ZenFone 4 Max ZC550TL | Asus ZenFone 4 Max ZC520KL | Asus ZenFone 4 Max SD430 | Asus ZenFone 4 Max Pro SD425 |