Comparison between:
- UMIDIGI One
- Xiaomi Redmi 6A
- Senseit W289
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| UMIDIGI One | Xiaomi Redmi 6A | Senseit W289 | |
 Prices |  Prices |  | |
| Model alias | - | Redmi6A | - |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 71.4 mm 7.14 cm 0.234 ft 2.811 in | 71.5 mm 7.15 cm 0.235 ft 2.815 in | 71.3 mm 7.13 cm 0.234 ft 2.807 in |
| Height | 148.4 mm 14.84 cm 0.487 ft 5.843 in | 147.5 mm 14.75 cm 0.484 ft 5.807 in | 156.6 mm 15.66 cm 0.514 ft 6.165 in |
| Thickness | 8.3 mm 0.83 cm 0.027 ft 0.327 in | 8.3 mm 0.83 cm 0.027 ft 0.327 in | 9.2 mm 0.92 cm 0.03 ft 0.362 in |
| Weight | 180 g 0.4 lbs 6.35 oz | 145 g 0.32 lbs 5.11 oz | 186 g 0.41 lbs 6.56 oz |
| Volume | 87.94 cm³ 5.34 in³ | 87.53 cm³ 5.32 in³ | 102.72 cm³ 6.24 in³ |
| Colors | Black Blue | Gold Rose-gold Blue Gray | Black |
| Body materials | Aluminium alloy Glass | Polycarbonate | Plastic 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 / microSD Nano-SIM | Nano-SIM | Nano-SIM Nano-SIM / microSD |
| 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) | - |
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 |
| CDMA | CDMA 800 MHz CDMA 1900 MHz | CDMA 800 MHz | - |
| W-CDMA | W-CDMA 850 MHz W-CDMA 900 MHz W-CDMA 1700 MHz W-CDMA 1900 MHz W-CDMA 2100 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 850 MHz UMTS 900 MHz UMTS 1900 MHz UMTS 2100 MHz | UMTS 900 MHz UMTS 2100 MHz |
| LTE | 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 700 MHz Class 13 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 700 MHz (B12) LTE 800 MHz (B18) LTE 800 MHz (B19) LTE 1900 MHz (B25) LTE 850 MHz (B26) LTE 700 MHz (B28) | LTE-TDD 1900 MHz (B39) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) LTE 850 MHz LTE 900 MHz LTE 1800 MHz LTE 2100 MHz LTE 2600 MHz | LTE 800 MHz LTE 1800 MHz LTE 2100 MHz LTE 2600 MHz |
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 7 EV-DO Rev. A TD-SCDMA TD-HSDPA | UMTS EDGE GPRS HSPA+ LTE Cat 4 EV-DO Rev. A TD-SCDMA TD-HSDPA | UMTS EDGE GPRS 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 8.1 Oreo | MIUI V9.6 (Android 8.1 Oreo) MIUI V10.0 (Android 8.1 Oreo) MIUI (Android 9.0 Pie) | Android 7.0 Nougat |
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 P23 (MT6763V) | MediaTek Helio A22 (MT6761) | MediaTek MT6737H |
| Process technology | 16 nm | 12 nm | 28 nm |
| CPU | 4x 2.0 GHz ARM Cortex-A53, 4x 1.5 GHz ARM Cortex-A53 | ARM Cortex-A53 | ARM Cortex-A53 |
| CPU bits | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv8-A | ARMv8-A | ARMv8-A |
| Level 1 cache memory (L1) | - | - | 32 KB + 32 KB |
| Level 2 cache memory (L2) | - | - | 512 KB 0.5 MB |
| CPU cores | 8 | 4 | 4 |
| CPU frequency | 2000 MHz | 2000 MHz | 1250 MHz |
| GPU | ARM Mali-G71 MP2 | PowerVR GE8300 | ARM Mali-T720 MP1 |
| GPU cores | 2 | - | 1 |
| GPU frequency | 700 MHz | - | - |
| RAM capacity | 4 GB | 2 GB 3 GB 4 GB | 2 GB |
| RAM type | LPDDR4X | LPDDR3 | LPDDR3 |
| RAM channels | Double channel | Single channel | Single channel |
| RAM frequency | 1600 MHz | 933 MHz | 640 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 32 GB | 16 GB 32 GB 64 GB | 16 GB |
| eMMC 5.1 | eMMC 5.1 | - |
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 | 5.9 in 149.86 mm 14.99 cm | 5.45 in 138.43 mm 13.84 cm | 5.7 in 144.78 mm 14.48 cm |
| Width | 2.53 in 64.15 mm 6.42 cm | 2.44 in 61.91 mm 6.19 cm | 2.55 in 64.75 mm 6.47 cm |
| Height | 5.33 in 135.43 mm 13.54 cm | 4.87 in 123.82 mm 12.38 cm | 5.1 in 129.5 mm 12.95 cm |
| Aspect ratio | 2.111:1 | 2:1 2:1 (18:9) | 2:1 2:1 (18:9) |
| Resolution | 720 x 1520 pixels | 720 x 1440 pixels | 720 x 1440 pixels |
| Pixel density | 285 ppi 112 ppcm | 295 ppi 115 ppcm | 282 ppi 110 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 82.26 % | 72.92 % | 75.33 % |
| Other features | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch | Capacitive Multi-touch |
| 2.5D curved glass screen | 2.5D curved glass screen 1000:1 contrast ratio | 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 | Proximity Light Accelerometer 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 model | OmniVision OV12870 | - | - |
| Sensor type | PureCel | CMOS | CMOS |
| Pixel size | 1.25 µm 0.001250 mm | - | - |
| Aperture | f/2 | f/2.2 | f/2.2 |
| Focal length and 35 mm equivalent | - | 3.79 mm | 3.5 mm |
| Number of lenses | 6 | 5 | - |
| Flash type | Dual LED | Dual LED | Dual LED |
| Image resolution | 4032 x 3024 pixels 12.19 MP | 4160 x 3120 pixels 12.98 MP | 3840 x 2160 pixels 8.29 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP | 1280 x 720 pixels 0.92 MP |
| Video FPS | 30 fps | 30 fps | 30 fps |
| Features | 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 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 shooting Digital zoom Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode |
| Secondary rear camera - 5 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 | Samsung S5K3P3 | - | - |
| Sensor type | ISOCELL | - | CMOS |
| Sensor size | 4.74 x 3.56 mm 0.23 in | - | - |
| Pixel size | 1.029 µm 0.001029 mm | - | - |
| Crop factor | 7.29 | - | - |
| Aperture | f/2 | f/2.2 | f/2.8 |
| Focal length and 35 mm equivalent | - | - | 3.5 mm |
| Number of lenses | 5 | - | - |
| Image resolution | 4608 x 3456 pixels 15.93 MP | 2592 x 1944 pixels 5.04 MP | 2560 x 1920 pixels 4.92 MP |
| Video resolution | 1920 x 1080 pixels 2.07 MP | 1920 x 1080 pixels 2.07 MP | 640 x 480 pixels 0.31 MP |
| Video FPS | 30 fps | 30 fps | 30 fps |
| Features | Face unlock | Face unlock | - |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece Stereo speakers | 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 | GPS A-GPS GLONASS BeiDou | GPS A-GPS |
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 | 802.11b 802.11g 802.11n Wi-Fi Hotspot Wi-Fi Direct Wi-Fi Display | 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 | 4.1 | 4.2 | 4.0 |
| Features | A2DP HID | A2DP HID | A2DP |
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 | Micro USB |
| Version | 2.0 | 2.0 | 2.0 |
| Features | Charging Host Mass storage On-The-Go | Charging Host Mass storage On-The-Go | Charging Mass storage |
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 VoLTE | Computer sync OTA sync Tethering VoLTE | 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.
| 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+ AC3 AMR eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AMR 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 H.265 MKV QuickTime MP4 WebM WMV Xvid | 3GPP AVI H.263 H.264 MKV MP4 VC-1 VP8 Xvid | 3GPP AVI MP4 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 | 3550 mAh | 3000 mAh | 2500 mAh |
| Type | Li-Polymer | Li-Polymer | Li-Polymer |
| Charger output power | 5 V / 2 A 7 V / 2 A 9 V / 2 A | 5 V / 1 A | 5 V / 1 A |
| Features | Fast charging Non-removable | Non-removable | Wireless 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) | - | 0.656 W/kg | - |
| Body SAR (EU) | - | 1.523 W/kg | - |
| Head SAR (USA) | - | 0.78 W/kg | - |
| Body SAR (USA) | - | 1.17 W/kg | - |
Additional features
Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.
| Additional features | - | M1804C3CG - SAR (Specific Absorption Rate) EU: head - 0.656 W/kg; body - 1.523 W/kg M1804C3CG - SAR (Specific Absorption Rate) US: head - 0.780 W/kg; body - 1.170 W/kg M1804C3CH - SAR (Specific Absorption Rate) EU: head - 0.442 W/kg; body - 1.356 W/kg M1804C3CH - SAR (Specific Absorption Rate) US: head - 0.790 W/kg; body - 1.180 W/kg M1804C3CI - SAR (Specific Absorption Rate) India: head - 0.746 W/kg; body - 0.715 W/kg | - |
| UMIDIGI One | Xiaomi Redmi 6A | Senseit W289 |