Comparison between:
- UMIDIGI A3 Pro
- UMIDIGI A9 Pro
- UMIDIGI C1 Max
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| UMIDIGI A3 Pro | UMIDIGI A9 Pro | UMIDIGI C1 Max | |
 Prices |  Prices |  Prices | |
| Model alias | A3Pro | A9Pro | - |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 70.2 mm 7.02 cm 0.23 ft 2.764 in | 74.9 mm 7.49 cm 0.246 ft 2.949 in | - |
| Height | 147.2 mm 14.72 cm 0.483 ft 5.795 in | 158.7 mm 15.87 cm 0.521 ft 6.248 in | - |
| Thickness | 8.5 mm 0.85 cm 0.028 ft 0.335 in | 8.6 mm 0.86 cm 0.028 ft 0.339 in | - |
| Weight | 185 g 0.41 lbs 6.53 oz | 213 g 0.47 lbs 7.51 oz | - |
| Volume | 87.83 cm³ 5.33 in³ | 102.23 cm³ 6.21 in³ | - |
| Colors | Gray Gold | Onyx Black Forest Green | White Black |
| Body materials | Metal Plastic | Glass Metal | Plastic |
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 | Nano-SIM |
| Number of SIM cards | 2 | 2 | 2 |
| Features | Dual SIM stand-by (Both cards are active. When one is busy, the other is not active) | Dual SIM stand-by (Both cards are active. When one is busy, the other is not active) | Dual 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.
| GSM | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz | GSM 850 MHz (B5) GSM 900 MHz (B8) GSM 1800 MHz (B3) GSM 1900 MHz (B2) | GSM 850 MHz (B5) GSM 900 MHz (B8) GSM 1800 MHz (B3) GSM 1900 MHz (B2) |
| CDMA | - | CDMA 800 MHz (BC0) CDMA 1900 MHz (BC1) | - |
| W-CDMA | W-CDMA 850 MHz W-CDMA 900 MHz W-CDMA 1700 MHz W-CDMA 1900 MHz W-CDMA 2100 MHz | W-CDMA 850 MHz (B5) W-CDMA 900 MHz (B8) W-CDMA 1700 MHz (B4) W-CDMA 1900 MHz (B2) W-CDMA 2100 MHz (B1) | W-CDMA 850 MHz (B5) W-CDMA 850 MHz (B6) W-CDMA 900 MHz (B8) W-CDMA 900 MHz (B19) W-CDMA 1700 MHz (B4) W-CDMA 1900 MHz (B2) W-CDMA 2100 MHz (B1) |
| TD-SCDMA | - | TD-SCDMA 1880-1920 MHz TD-SCDMA 2010-2025 MHz | TD-SCDMA 1900 MHz TD-SCDMA 2000 MHz |
| LTE | 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 (B19) | LTE-FDD 700 MHz (B12) LTE-FDD 700 MHz (B13) LTE-FDD 700 MHz (B17) LTE-FDD 700 MHz (B28) LTE-FDD 800 MHz (B20) LTE-FDD 850 MHz (B5) LTE-FDD 850 MHz (B18) LTE-FDD 850 MHz (B19) LTE-FDD 850 MHz (B26) LTE-FDD 900 MHz (B8) LTE-FDD 1700 MHz (B4) LTE-FDD 1700 MHz (B66) LTE-FDD 1800 MHz (B3) LTE-FDD 1900 MHz (B2) LTE-FDD 2100 MHz (B1) LTE-FDD 2600 MHz (B7) LTE-TDD 1900 MHz (B39) LTE-TDD 2000 MHz (B34) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) | LTE-FDD 700 MHz (B12) LTE-FDD 700 MHz (B13) LTE-FDD 700 MHz (B17) LTE-FDD 700 MHz (B28) LTE-FDD 800 MHz (B20) LTE-FDD 850 MHz (B5) LTE-FDD 850 MHz (B18) LTE-FDD 850 MHz (B19) LTE-FDD 850 MHz (B26) LTE-FDD 900 MHz (B8) LTE-FDD 1700 MHz (B4) LTE-FDD 1700 MHz (B66) LTE-FDD 1800 MHz (B3) LTE-FDD 1900 MHz (B2) LTE-FDD 2100 MHz (B1) LTE-FDD 2600 MHz (B7) LTE-TDD 1900 MHz (B39) LTE-TDD 2000 MHz (B34) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) |
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 | UMTS EDGE GPRS HSPA+ LTE Cat 6 | 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) | Android 8.1 Oreo | Android 10 Android 11 | Android 12 |
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 MT6739 | MediaTek Helio P60 (MT6771) | Unisoc Tiger T610 (UMS512) |
| Process technology | 28 nm | 12 nm | 12 nm |
| CPU | 4x 1.5 GHz ARM Cortex-A53 | 4x 2.0 GHz ARM Cortex-A73, 4x 2.0 GHz ARM Cortex-A53 | 2x 1.8 GHz ARM Cortex-A75, 6x 1.8 GHz ARM Cortex-A55 |
| CPU bits | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv8-A | ARMv8-A | ARMv8.2-A |
| CPU cores | 4 | 8 | 8 |
| CPU frequency | 1500 MHz | 2000 MHz | 1800 MHz |
| GPU | IMG PowerVR GE8100 | ARM Mali-G72 MP3 | ARM Mali-G52 MC2 |
| GPU cores | - | 3 | 2 |
| GPU frequency | 570 MHz | 800 MHz | 614 MHz |
| RAM capacity | 3 GB | 4 GB 6 GB | 6 GB |
| RAM type | LPDDR3 | LPDDR4X | LPDDR4/LPDDR4X |
| RAM channels | Single channel | Double channel | Double channel |
| RAM frequency | 667 MHz | 1800 MHz | 1600 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 32 GB | 64 GB 128 GB | 128 GB |
| eMMC 5.1 | UFS 2.1 | - |
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 |
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 |
| Diagonal size | 5.7 in 144.78 mm 14.48 cm | 6.3 in 160.02 mm 16 cm | 6.52 in 165.61 mm 16.56 cm |
| Width | 2.45 in 62.25 mm 6.22 cm | 2.64 in 67.06 mm 6.71 cm | 2.68 in 67.96 mm 6.8 cm |
| Height | 5.15 in 130.72 mm 13.07 cm | 5.72 in 145.29 mm 14.53 cm | 5.95 in 151.02 mm 15.1 cm |
| Aspect ratio | 2.1:1 | 2.167:1 | 2.222:1 |
| Resolution | 720 x 1512 pixels | 1080 x 2340 pixels | 720 x 1600 pixels |
| Pixel density | 294 ppi 115 ppcm | 409 ppi 160 ppcm | 269 ppi 105 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 78.99 % | 82.23 % | - |
| Other features | Capacitive Multi-touch | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch Scratch resistant |
| 2.5D curved glass screen | 2.5D curved glass screen In-cell LTPS (Low Temperature PolySilicon) | 2.5D curved glass screen |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Compass Gyroscope Fingerprint | Proximity Light Accelerometer Compass Gyroscope Fingerprint | Proximity Light Accelerometer Fingerprint |
| - | Non-Contact Infrared Thermometer | Side-mounted fingerprint sensor |
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 | OmniVision OV12870 | Sony IMX582 Exmor RS | - |
| Sensor type | PureCel | CMOS BSI | CMOS BSI |
| Sensor format | - | 1/2" | - |
| Pixel size | 1.25 µm 0.001250 mm | 0.8 µm 0.000800 mm | - |
| ISO | 100 - 1600 | - | - |
| Aperture | f/2 | f/1.79 | - |
| Focal length and 35 mm equivalent | 3.5 mm | - | - |
| Number of lenses | 6 | 6 | 6 |
| Flash type | Dual LED | Dual LED | Dual LED |
| Image resolution | 3968 x 2976 pixels 11.81 MP | 8000 x 6000 pixels 48 MP | 8190 x 6120 pixels 50.12 MP |
| Video resolution | 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 |
| Features | 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 shooting Digital zoom Digital image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Macro mode Phase detection autofocus (PDAF) | 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 Macro mode Phase detection autofocus (PDAF) Super Night Mode |
| Available also with Sony IMX386 Exmor RS (CMOS) Secondary rear camera - 5 MP | 32MP Sony camera for the 4GB+64GB variant Secondary rear camera - 16 MP (ultra-wide angle) Angle of view - 120° (#2) Third rear camera - 5 MP (depth-sensing) Fourth rear camera - 5 MP (macro) 2.5 cm shooting distance (#4) | Secondary rear camera |
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 OV8856 | Sony | - |
| Sensor type | PureCel | CMOS BSI | CMOS BSI |
| Sensor size | 3.68 x 2.77 mm 0.18 in | - | - |
| Pixel size | 1.127 µm 0.001127 mm | - | - |
| Crop factor | 9.4 | - | - |
| Aperture | f/2 | f/2 | - |
| Focal length and 35 mm equivalent | 3.5 mm 32.9 mm *(35 mm / full frame) | - | - |
| Number of lenses | - | 5 | - |
| Image resolution | 3264 x 2448 pixels 7.99 MP | 24 MP | 3264 x 2448 pixels 7.99 MP |
| Video resolution | 1280 x 720 pixels 0.92 MP | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP |
| Video FPS | 30 fps | 30 fps | 30 fps |
| Features | Face unlock | Face unlock | Face unlock |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece | Loudspeaker Earpiece | Loudspeaker Earpiece |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | 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 Galileo |
Wi-Fi
Wi-Fi is a technology that provides wireless data connections between various devices within a short range.
| Wi-Fi | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz Dual band Wi-Fi Hotspot Wi-Fi Direct Wi-Fi Display | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Dual band Wi-Fi Hotspot Wi-Fi Direct Wi-Fi Display | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Dual band Wi-Fi Hotspot Wi-Fi Direct Wi-Fi Display |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 4.0 | 4.2 | 4.2 |
| Features | A2DP | A2DP HID | A2DP HID |
USB
The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.
| Connector type | Micro USB | USB Type-C | USB Type-C |
| Version | 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 |
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 |
Connectivity
Information about other important connectivity technologies supported by the devices.
| Connectivity | Computer sync OTA sync Tethering VoLTE | Computer sync OTA sync VoLTE | Computer sync OTA sync 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 |
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 |
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 DivX H.263 H.264 MKV MP4 WebM Xvid | 3GPP AVI DivX H.263 H.264 H.265 MKV QuickTime MP4 WebM WMV Xvid | 3GPP AVI DivX H.263 H.264 H.265 MKV QuickTime 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 | 3300 mAh | 4150 mAh | 5150 mAh |
| Type | Li-Polymer | Li-Polymer | Li-Polymer |
| Charger output power | 5 V / 1 A | 5 V / 2 A | 5 V / 2 A |
| Features | Non-removable | Fast charging Non-removable | Fast charging Non-removable |
Additional features
Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.
| Additional features | - | Customizable Shortcut Key | - |
| UMIDIGI A3 Pro | UMIDIGI A9 Pro | UMIDIGI C1 Max |