Comparison between:
- Ulefone Armor 21
- Mlais MX Base
- Unihertz Tank
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Ulefone Armor 21 | Mlais MX Base | Unihertz Tank | |
 |  |  |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 81.6 mm 8.16 cm 0.268 ft 3.213 in | 71.5 mm 7.15 cm 0.235 ft 2.815 in | 85.4 mm 8.54 cm 0.28 ft 3.362 in |
| Height | 176 mm 17.6 cm 0.577 ft 6.929 in | 145.8 mm 14.58 cm 0.478 ft 5.74 in | 175.6 mm 17.56 cm 0.576 ft 6.913 in |
| Thickness | 18.1 mm 1.81 cm 0.059 ft 0.713 in | 9.9 mm 0.99 cm 0.032 ft 0.39 in | 24.6 mm 2.46 cm 0.081 ft 0.969 in |
| Weight | 400 g 0.88 lbs 14.11 oz | 168 g 0.37 lbs 5.93 oz | 553 g 1.22 lbs 19.51 oz |
| Volume | 259.94 cm³ 15.79 in³ | 103.2 cm³ 6.27 in³ | 368.91 cm³ 22.4 in³ |
| Colors | Black | Black White Turquoise | Black |
| Body materials | Polycarbonate TPU Metal | Plastic | Metal Polycarbonate TPU |
| Certification | IP68 IP69K MIL-STD-810H | - | IP68 MIL-STD-810H |
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 | Micro-SIM Mini-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 (B5) GSM 900 MHz (B8) GSM 1800 MHz (B3) GSM 1900 MHz (B2) | 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) |
| CDMA | - | - | CDMA 800 MHz (BC0) CDMA 1900 MHz (BC1) |
| W-CDMA | 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 W-CDMA 900 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) |
| LTE | LTE-FDD 700 MHz (B12) LTE-FDD 700 MHz (B17) LTE-FDD 700 MHz (B28) LTE-FDD 800 MHz (B20) LTE-FDD 850 MHz (B5) LTE-FDD 850 MHz (B19) 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 800 MHz LTE 1800 MHz LTE 2100 MHz LTE 2600 MHz LTE-TDD 2300 MHz (B40) | 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 EV-DO Rev. A TD-SCDMA | UMTS EDGE GPRS HSPA+ LTE Cat 4 | 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 13 | Android 5.0 Lollipop Android 5.1 Lollipop | 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 Helio G99 (MT6789) | MediaTek MT6735 | MediaTek Helio G99 (MT6789) |
| Process technology | 6 nm | 28 nm | 6 nm |
| CPU | 2x 2.2 GHz ARM Cortex-A76, 6x 2.0 GHz ARM Cortex-A55 | 4x 1.3 GHz ARM Cortex-A53 | 2x 2.2 GHz ARM Cortex-A76, 6x 2.0 GHz ARM Cortex-A55 |
| CPU bits | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv8.2-A | ARMv8-A | ARMv8.2-A |
| Level 1 cache memory (L1) | - | 32 KB + 32 KB | - |
| Level 2 cache memory (L2) | - | 512 KB 0.5 MB | - |
| CPU cores | 8 | 4 | 8 |
| CPU frequency | 2200 MHz | 1300 MHz | 2200 MHz |
| GPU | ARM Mali-G57 MC2 | ARM Mali-T720 MP2 | ARM Mali-G57 MC2 |
| GPU cores | 2 | 2 | 2 |
| GPU frequency | 1000 MHz | 600 MHz | 1000 MHz |
| RAM capacity | 8 GB | 2 GB | 8 GB |
| RAM type | LPDDR4X | LPDDR3 | LPDDR4X |
| RAM channels | Double channel | Single channel | Double channel |
| RAM frequency | 2133 MHz | 640 MHz | 2133 MHz |
| Virtual RAM expansion - 8GB | - | - |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 256 GB | 16 GB | 256 GB |
| UFS 2.1 | - | UFS 2.2 |
Memory cards
Memory cards are used in mobile devices for expanding their external storage capacity.
| Types | 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 | 6.58 in 167.13 mm 16.71 cm | 5 in 127 mm 12.7 cm | 6.81 in 172.97 mm 17.3 cm |
| Width | 2.69 in 68.4 mm 6.84 cm | 2.45 in 62.26 mm 6.23 cm | 2.79 in 70.98 mm 7.1 cm |
| Height | 6 in 152.5 mm 15.25 cm | 4.36 in 110.69 mm 11.07 cm | 6.21 in 157.74 mm 15.77 cm |
| Aspect ratio | 2.23:1 | 1.778:1 16:9 | 2.222:1 |
| Resolution | 1080 x 2408 pixels | 720 x 1280 pixels | 1080 x 2400 pixels |
| Pixel density | 401 ppi 157 ppcm | 294 ppi 115 ppcm | 386 ppi 151 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 72.86 % | 66.33 % | 74.9 % |
| Other features | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch | Capacitive Multi-touch Scratch resistant |
| Corning Gorilla Glass 5 - 1.1 mm Oleophobic coating 120 Hz refresh rate 240 Hz touch sampling rate 550 cd/m² maximum brightness | OGS (One Glass Solution) Full Lamination Technology | Panda MN228 Glass |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Compass Gyroscope Barometer Pedometer Thermometer Geomagnetic Magnetometer Fingerprint Gravity Coulomb counter | Proximity Light Accelerometer Gyroscope | Proximity Light Accelerometer Compass Gyroscope Barometer Pedometer Geomagnetic Fingerprint |
| Side-mounted fingerprint sensor | - | Side-mounted fingerprint sensor |
Main rear camera
The main camera of the mobile device is usually placed on its back and can be combined with one or more additional cameras.
| Sensor model | Sony IMX686 Exmor RS | Sony IMX219PQ Exmor R | Samsung S5KHM2 |
| Sensor type | CMOS BSI | CMOS BSI | ISOCELL |
| Sensor size | - | 3.67 x 2.76 mm 0.18 in | 5.98 x 4.49 mm 0.29 in |
| Sensor format | - | - | 1/1.52" |
| Pixel size | 0.8 µm 0.000800 mm | 1.124 µm 0.001124 mm | 0.7 µm 0.000700 mm |
| Crop factor | - | 9.42 | 5.79 |
| ISO | - | - | 100 - 16000 |
| Aperture | f/1.9 | f/2.2 | f/1.75 |
| Field of view | 85 ° | - | - |
| Number of lenses | 6 | 6 | - |
| Flash type | LED | LED | LED |
| Image resolution | 9216 x 6912 pixels 63.7 MP | 3264 x 2448 pixels 7.99 MP | 12000 x 9000 pixels 108 MP |
| Video resolution | 2560 x 1440 pixels 3.69 MP | 1920 x 1080 pixels 2.07 MP | 2560 x 1440 pixels 3.69 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 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 | Autofocus Continuous shooting Digital zoom Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Macro mode Phase detection autofocus (PDAF) |
| - | - | Pixel size - 2.1 μm (9-in-1 pixel binning) |
Macro camera
Specifications of the macro camera of the device. This type of camera in smartphones is used to snap close-up photos of tiny objects.
| Sensor model | - | - | OmniVision OV2680 |
| Sensor format | - | - | 1/5" |
| Pixel size | - | - | 1.75 µm 0.001750 mm |
| Aperture | - | - | f/2.4 |
| Image resolution | - | - | 2 MP |
Night Vision camera
Specifications of the Night Vision camera of the device. This type of camera takes photos in the dark by emitting infrared light and capturing its reflection from the objects.
| Sensor model | OmniVision OV24A1B | - | Sony IMX350 |
| Sensor format | - | - | 1/2.78" |
| Aperture | f/1.8 | - | f/1.8 |
| Field of view | 78.1 ° | - | - |
| Infrared lights | 2 | - | 2 |
| Image resolution | 24 MP | - | 20 MP |
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 | Sony IMX481 | - | Samsung S5KGD1 |
| Sensor type | CMOS BSI | - | ISOCELL |
| Sensor size | - | 2.9 x 2.15 mm 0.14 in | 5.25 x 3.94 mm 0.26 in |
| Sensor format | 1/3.09" | - | 1/2.8" |
| Pixel size | 1 µm 0.001000 mm | 1.133 µm 0.001133 mm | 0.8 µm 0.000800 mm |
| Crop factor | - | 11.99 | 6.59 |
| ISO | - | - | 100 - 16000 |
| Aperture | f/2.2 | f/2.2 | f/2 |
| Field of view | 76.6 ° | - | - |
| Number of lenses | 5 | - | - |
| Image resolution | 4608 x 3456 pixels 15.93 MP | 2560 x 1920 pixels 4.92 MP | 6560 x 4928 pixels 32.33 MP |
| Video resolution | 2520 x 1440 pixels 3.63 MP | - | 1920 x 1080 pixels 2.07 MP |
| Video FPS | 30 fps | - | 30 fps |
| Features | Face unlock HDR Face detection | - | Face unlock Face detection |
| - | - | Pixel size - 1.0 μm (4-in-1 pixel binning) |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece | Loudspeaker Earpiece | Loudspeaker Earpiece |
| Infinite Halo with 18 RGB Lights 122 dB speaker 3.5W 11.5 CC sound cavity Hi-Fi Sound | - | - |
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 Galileo | GPS A-GPS GLONASS | 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 802.11ac Dual band Wi-Fi Hotspot Wi-Fi Direct Wi-Fi Display | 802.11b 802.11g 802.11n Wi-Fi Hotspot | 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 | 5.2 | 4.0 | 5.3 |
| Features | A2DP LE | A2DP | A2DP EDR LE HS |
USB
The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.
| Connector type | USB Type-C | Micro USB | 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 Infrared Tethering NFC VoLTE | Computer sync OTA sync Infrared Tethering | Computer sync OTA sync Infrared Tethering NFC |
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 eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AMR eAAC+ MIDI MP3 WMA WAV | AAC AAC+ AMR AMR-WB eAAC+ FLAC M4A MIDI MP3 OGG WMA WAV ALAC APE |
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 H.263 H.264 H.265 MKV MP4 WebM WMV Xvid | 3GPP AVI MP4 Xvid | 3GPP AVI DivX Flash Video H.263 H.264 MKV QuickTime MP4 WebM WMV Xvid FLV ASF RM MOV |
Battery
The batteries of mobile devices differ in capacity and technology. They provide the electrical charge needed for the functioning of the devices.
| Capacity | 9600 mAh | 4300 mAh | 22000 mAh |
| Type | Li-Polymer | Li-Polymer | Li-Polymer |
| 4G talk time | 39 h 2340 min 1.6 days | - | 150 h 9000 min 6.3 days |
| 4G stand-by time | 522 h 31320 min 21.8 days | - | 2380 h 142800 min 99.2 days |
| Charger output power | 11 V / 3 A | - | 11 V / 6 A 20 V / 3.25 A 15 V / 3 A 12 V / 3 A 9 V / 3 A |
| Features | Fast charging Non-removable | Fast charging Removable | Fast charging Non-removable |
| Dock charging - 10 W | - | - |
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) | 0.638 W/kg | - | 0.155 W/kg |
| Body SAR (EU) | 0.947 W/kg | - | 0.683 W/kg |
| Head SAR (USA) | - | - | 0.227 W/kg |
| Body SAR (USA) | - | - | 0.793 W/kg |
Additional features
Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.
| Additional features | Customizable Key uSmart Connector - endoscope microscope | - | 1200-Lumen Camping Light |
| Ulefone Armor 21 | Mlais MX Base | Unihertz Tank |