Comparison between:
- Doopro P3
- Elephone A4
- Elephone A4 Pro
- Elephone U2
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Doopro P3 | Elephone A4 | Elephone A4 Pro | Elephone U2 | |
 Prices |  Prices |  |  | |
| Model alias | - | - | A4Pro | - |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 71.7 mm 7.17 cm 0.235 ft 2.823 in | 72.8 mm 7.28 cm 0.239 ft 2.866 in | 72.8 mm 7.28 cm 0.239 ft 2.866 in | 74.9 mm 7.49 cm 0.246 ft 2.949 in |
| Height | 145 mm 14.5 cm 0.476 ft 5.709 in | 150.4 mm 15.04 cm 0.493 ft 5.921 in | 150.4 mm 15.04 cm 0.493 ft 5.921 in | 153.3 mm 15.33 cm 0.503 ft 6.035 in |
| Thickness | 10.3 mm 1.03 cm 0.034 ft 0.406 in | 8.9 mm 0.89 cm 0.029 ft 0.35 in | 8 mm 0.8 cm 0.026 ft 0.315 in | 10.2 mm 1.02 cm 0.033 ft 0.402 in |
| Weight | - | 198 g 0.44 lbs 6.98 oz | 189 g 0.42 lbs 6.67 oz | 192 g 0.42 lbs 6.77 oz |
| Volume | 107.08 cm³ 6.5 in³ | 97.45 cm³ 5.92 in³ | 87.59 cm³ 5.32 in³ | 117.12 cm³ 7.11 in³ |
| Colors | Black White Blue Red | Red Gray Gold Black | Black Red Gray | Black Red Gray Blue |
| Body materials | Plastic | Metal Plastic | Metal Glass | Metal Glass |
SIM card
The Subscriber Identity Module (SIM) is used in mobile devices for storing data authenticating the subscribers of mobile services.
| SIM card type | Micro-SIM | Nano-SIM / microSD Nano-SIM | Nano-SIM / microSD Nano-SIM | Nano-SIM Nano-SIM / microSD |
| Number of SIM cards | 2 | 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 | GSM 850 MHz GSM 900 MHz GSM 1800 MHz GSM 1900 MHz |
| CDMA | - | - | - | CDMA 800 MHz |
| W-CDMA | W-CDMA 900 MHz W-CDMA 2100 MHz | W-CDMA 850 MHz W-CDMA 900 MHz W-CDMA 2100 MHz | W-CDMA 850 MHz W-CDMA 900 MHz W-CDMA 2100 MHz | 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 |
| LTE | - | LTE 800 MHz LTE 850 MHz LTE 900 MHz LTE 1800 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 LTE 850 MHz LTE 900 MHz LTE 1800 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 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 1900 MHz (B39) LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) LTE-TDD 2600 MHz (B38) 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+ | UMTS EDGE GPRS HSPA+ LTE Cat 4 | UMTS EDGE GPRS HSPA+ LTE Cat 6 | UMTS EDGE GPRS HSPA+ LTE Cat 6 EV-DO Rev. A 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 8.1 Oreo | Android 8.1 Oreo | Android 9.0 Pie |
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 MT6580 | MediaTek MT6739 | MediaTek Helio P23 (MT6763V) | MediaTek Helio P70 |
| Process technology | 28 nm | 28 nm | 16 nm | 12 nm |
| CPU | ARM Cortex-A7 | ARM Cortex-A53 | 4x 2.0 GHz ARM Cortex-A53, 4x 1.5 GHz ARM Cortex-A53 | 4x 2.1 GHz ARM Cortex-A73, 4x 1.95 GHz ARM Cortex-A53 |
| CPU bits | 32 bit | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv7 | 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 | 4 | 4 | 8 | 8 |
| CPU frequency | 1300 MHz | 1500 MHz | 2000 MHz | 2100 MHz |
| GPU | ARM Mali-400 MP2 | PowerVR GE8100 | ARM Mali-G71 MP2 | ARM Mali-G72 MP3 |
| GPU cores | 2 | - | 2 | 3 |
| GPU frequency | - | 570 MHz | 700 MHz | 900 MHz |
| RAM capacity | 1 GB | 3 GB | 4 GB | 4 GB 6 GB |
| RAM type | - | LPDDR3 | LPDDR3 | LPDDR4X |
| RAM channels | Single channel | Single channel | Single channel | Double channel |
| RAM frequency | 533 MHz | 667 MHz | 933 MHz | 1800 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 8 GB | 16 GB | 64 GB | 64 GB 128 GB |
| - | 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 in 127 mm 12.7 cm | 5.85 in 148.59 mm 14.86 cm | 5.85 in 148.59 mm 14.86 cm | 6.26 in 159 mm 15.9 cm |
| Width | 2.45 in 62.23 mm 6.22 cm | 2.52 in 63.88 mm 6.39 cm | 2.52 in 63.88 mm 6.39 cm | 2.68 in 68.07 mm 6.81 cm |
| Height | 4.36 in 110.71 mm 11.07 cm | 5.28 in 134.16 mm 13.42 cm | 5.28 in 134.16 mm 13.42 cm | 5.66 in 143.7 mm 14.37 cm |
| Aspect ratio | 1.779:1 | 2.1:1 | 2.1:1 | 2.111:1 |
| Resolution | 480 x 854 pixels | 720 x 1512 pixels | 720 x 1512 pixels | 1080 x 2280 pixels |
| Pixel density | 196 ppi 77 ppcm | 286 ppi 112 ppcm | 286 ppi 112 ppcm | 403 ppi 158 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 66.48 % | 78.53 % | 78.53 % | 85.46 % |
| Other features | Capacitive Multi-touch | Capacitive Multi-touch | Capacitive Multi-touch | Capacitive Multi-touch |
| - | - | - | 2.5D curved glass screen 500 cd/m² 103% NTSC |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer | Proximity Light Accelerometer Compass Fingerprint | Proximity Light Accelerometer Compass 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 BSI | CMOS BSI | CMOS |
| Aperture | - | f/2 | f/2 | f/1.6 |
| Flash type | LED | Dual LED | Dual LED | Dual LED |
| Image resolution | 2592 x 1944 pixels 5.04 MP | 3264 x 2448 pixels 7.99 MP | 4160 x 3120 pixels 12.98 MP | 4608 x 3456 pixels 15.93 MP |
| Video resolution | 1280 x 720 pixels 0.92 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 shooting Digital zoom 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 | Autofocus Continuous shooting Digital zoom 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 Phase detection autofocus (PDAF) |
| - | Interpolated resolution - 13 MP | Interpolated resolution - 16 MP | Secondary rear camera - 5 MP Third rear camera - 2 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.
| Aperture | - | f/2.8 | f/2.8 | - |
| Image resolution | 1600 x 1200 pixels 1.92 MP | 2560 x 1920 pixels 4.92 MP | 3264 x 2448 pixels 7.99 MP | 4608 x 3456 pixels 15.93 MP |
| Video resolution | 640 x 480 pixels 0.31 MP | 640 x 480 pixels 0.31 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 |
| Features | - | Face unlock | Face unlock | Face unlock |
| - | - | - | Pop-up front camera Secondary front camera - 2 MP |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker | Loudspeaker Earpiece | Loudspeaker Earpiece | Loudspeaker Earpiece |
| - | - | - | NXP Smart PA Headphone adapter |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | Yes | Yes | Yes | Yes |
| - | - | - | RDS |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | GPS A-GPS | GPS A-GPS | 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-Fi | 802.11b 802.11g 802.11n Wi-Fi Hotspot | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz Dual band Wi-Fi Hotspot Wi-Fi Direct | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz Dual band Wi-Fi Hotspot Wi-Fi Direct | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 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 | 4.0 | 4.2 |
| Features | A2DP | A2DP | A2DP | A2DP LE |
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 | USB Type-C |
| Version | 2.0 | 2.0 | 2.0 | 2.0 |
| Features | Charging Mass storage | 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 | No |
Connectivity
Information about other important connectivity technologies supported by the devices.
| Connectivity | Computer sync OTA sync Tethering | Computer sync OTA sync Tethering | Computer sync OTA sync Tethering | Computer sync OTA sync Tethering NFC 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 AMR eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AMR eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC AMR eAAC+ FLAC MIDI MP3 OGG WMA WAV | AAC 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 MP4 WebM Xvid | 3GPP AVI H.263 H.264 MP4 WebM WMV Xvid | 3GPP AVI H.263 H.264 MP4 WebM WMV Xvid | 3GPP AVI Flash Video H.263 H.264 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 | 4200 mAh | 3000 mAh | 3000 mAh | 3250 mAh |
| Type | Li-Ion | Li-Polymer | Li-Polymer | Li-Polymer |
| 2G talk time | 18 h 1080 min 0.8 days | - | - | - |
| 3G talk time | 18 h 1080 min 0.8 days | - | - | - |
| Charger output power | - | 5 V / 2 A | 5 V / 2 A | 5 V / 2 A |
| Features | Removable | Non-removable | Fast charging Non-removable | Fast charging Non-removable |
| Doopro P3 | Elephone A4 | Elephone A4 Pro | Elephone U2 |