Comparison between:
- Oppo Pad Mini
- OnePlus Pad 4
- Xiaomi Redmi Pad 2 9.7
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Oppo Pad Mini | OnePlus Pad 4 | Xiaomi Redmi Pad 2 9.7 | |
 |  |  | |
| Model alias | OPD2515 | - | - |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 194.38 mm 19.438 cm 0.638 ft 7.653 in | 289.71 mm 28.971 cm 0.95 ft 11.406 in | 226.51 mm 22.651 cm 0.743 ft 8.918 in |
| Height | 132.38 mm 13.238 cm 0.434 ft 5.212 in | 209.76 mm 20.976 cm 0.688 ft 8.258 in | 147.97 mm 14.797 cm 0.485 ft 5.826 in |
| Thickness | 5.39 mm 0.539 cm 0.018 ft 0.212 in | 5.94 mm 0.594 cm 0.019 ft 0.234 in | 7.4 mm 0.74 cm 0.024 ft 0.291 in |
| Weight | 279 g 0.62 lbs 9.84 oz | 672 g 1.48 lbs 23.7 oz | 406 g 0.9 lbs 14.32 oz |
| Volume | 138.7 cm³ 8.42 in³ | 360.97 cm³ 21.92 in³ | 248.02 cm³ 15.06 in³ |
| Colors | Deep Space Gray Monet Purple Mint | Dune Glow Sage Mist | Silver Dark Gray |
| Body materials | 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 |
| Number of SIM cards | - | - | 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 (B5) GSM 900 MHz (B8) GSM 1800 MHz (B3) GSM 1900 MHz (B2) |
| W-CDMA | - | - | 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) |
| LTE | - | - | LTE-FDD 700 MHz (B13) 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 1900 MHz (B2) LTE-FDD 2100 MHz (B1) LTE-FDD 2600 MHz (B7) 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 |
Operating system
Operating system is the system software, which manages and controls the functioning of the hardware components of the device.
| Operating system (OS) | ColorOS 16 (Android 16) | OxygenOS 16 (Android 16) | Xiaomi HyperOS 3.0 (Android 16) |
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 | Qualcomm Snapdragon 8 Gen 5 (SM8845) | Qualcomm Snapdragon 8 Elite Gen 5 (SM8850-AC) | Qualcomm Snapdragon 6s 4G Gen 2 |
| Process technology | 3 nm | 3 nm | 6 nm |
| CPU | 2x 3.8 GHz Oryon, 6x 3.32 GHz Oryon | 2x 4.61 GHz Oryon, 6x 3.63 GHz Oryon | 4x 2.9 GHz ARM Cortex-A73, 4x ARM Cortex-A53 |
| CPU bits | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv9.2-A | ARMv9.2-A | ARMv8.2-A |
| CPU cores | 8 | 8 | 8 |
| CPU frequency | 3800 MHz | 4610 MHz | 2900 MHz |
| GPU | Qualcomm Adreno 840 | Qualcomm Adreno 840 (829) | Qualcomm Adreno 610 |
| GPU frequency | 384 MHz | 768 MHz | - |
| RAM capacity | 8 GB 12 GB 16 GB | 8 GB 12 GB | 4 GB |
| RAM type | LPDDR5X | LPDDR5X | LPDDR4X |
| RAM channels | Quad channel | Quad channel | Double channel |
| RAM frequency | 4800 MHz | 5333 MHz | 2133 MHz |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 256 GB 512 GB 1024 GB | 256 GB 512 GB | 64 GB 128 GB |
| UFS 4.1 @ 2Lanes HS-Gear5 | UFS 4.1 | UFS 2.2 |
Memory cards
Memory cards are used in mobile devices for expanding their external storage capacity.
| Types | - | - | 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 | AMOLED | IPS | IPS |
| Diagonal size | 8.8 in 223.52 mm 22.35 cm | 13.2 in 335.28 mm 33.53 cm | 9.7 in 246.38 mm 24.64 cm |
| Width | 7.32 in 185.98 mm 18.6 cm | 10.78 in 273.7 mm 27.37 cm | 8.23 in 208.93 mm 20.89 cm |
| Height | 4.88 in 123.99 mm 12.4 cm | 7.62 in 193.65 mm 19.37 cm | 5.14 in 130.58 mm 13.06 cm |
| Aspect ratio | 1.5:1 3:2 | 1.413:1 | 1.6:1 16:10 |
| Resolution | 2520 x 1680 pixels | 3392 x 2400 pixels | 2048 x 1280 pixels |
| Pixel density | 344 ppi 135 ppcm | 315 ppi 123 ppcm | 249 ppi 97 ppcm |
| Color depth | 30 bit 1073741824 colors | 36 bit 68719476736 colors | 30 bit 1073741824 colors |
| Display area | 89.9 % | 87.5 % | 81.66 % |
| Other features | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch Scratch resistant |
| 2.5D curved glass screen 60-144 Hz refresh rate 240 Hz touch sampling rate 800 cd/m² typical brightness 1600 cd/m² HBM 3200 cd/m² peak local brightness 100% DCI-P3 HDR Vivid HDR10 TÜV Rheinland Flicker-free Certified TÜV Rheinland Low Blue Light Certified | 2.5D curved glass screen 700 cd/m² typical brightness 1000 cd/m² HBM 120-144 Hz adaptive refresh rate 540 Hz touch sampling rate 96% NTSC 98% DCI-P3 12-bit (8-bit+4 FRC) ZReal Dolby Vision | 2.5D curved glass screen 120 Hz refresh rate 600 cd/m² TÜV Rheinland Circadian Friendly Certified TÜV Rheinland Flicker Free Certified TÜV Rheinland Low Blue Light Certified (Software Solution) |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Compass Gyroscope Hall Color Temperature Sensor | Light Accelerometer Compass Gyroscope Geomagnetic Hall Gravity Color temperature sensor | Accelerometer Hall |
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 type | CMOS | CMOS | CMOS |
| Sensor format | - | - | 1/4" |
| Pixel size | - | - | 1.12 µm 0.001120 mm |
| Aperture | - | f/1.8 | f/2 |
| Flash type | - | LED | - |
| Image resolution | 4130 x 3120 pixels 12.89 MP | 4160 x 3120 pixels 12.98 MP | 3264 x 2448 pixels 7.99 MP |
| Video resolution | 3840 x 2160 pixels 8.29 MP | 3840 x 2160 pixels 8.29 MP | 1920 x 1080 pixels 2.07 MP |
| Video FPS | 30 fps | 30 fps | 30 fps |
| Features | Autofocus Digital zoom Digital image stabilization Geotagging HDR Touch focus Phase detection autofocus (PDAF) | Autofocus Digital zoom Digital image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Phase detection autofocus (PDAF) | Autofocus Digital zoom Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode |
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 type | CMOS | CMOS | CMOS |
| Sensor format | - | - | 1/5" |
| Pixel size | - | - | 1.12 µm 0.001120 mm |
| Aperture | - | - | f/2.2 |
| Image resolution | 3264 x 2448 pixels 7.99 MP | 3264 x 2448 pixels 7.99 MP | 2560 x 1944 pixels 4.98 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 | Face detection Face unlock | Face detection Face unlock | Face detection Face unlock |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Stereo speakers | Loudspeaker Earpiece Stereo speakers | Loudspeaker Earpiece Stereo speakers |
| 2x stereo speakers 2x microphones | 8x stereo speakers - 4x woofers and 4x tweeters 2x microphones | - |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | No | No | - |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | - | Wi-Fi | 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 Wi-Fi 6 (802.11ax) Wi-Fi 7 (802.11be) Wi-Fi Hotspot Wi-Fi Direct Wi-Fi Display | 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Wi-Fi 6 (802.11ax) Wi-Fi 7 (802.11be) 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 |
| - | 2×2 MIMO 8 spatial-stream sounding MU-MIMO | - |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 5.4 | 6.0 | 5.0 |
| Features | A2DP LE | A2DP EDR LE | A2DP EDR HID LE |
USB
The Universal Serial Bus (USB) is an industry standard that allows different electronic devices to exchange data.
| Connector type | USB Type-C | USB Type-C | USB Type-C |
| Version | 3.2 | 3.2 | 2.0 |
| Features | Charging Host Mass storage On-The-Go | Charging Mass storage On-The-Go | Charging Mass storage On-The-Go |
| Gen 1 - 5 Gbps DP Alt Mode | Gen 1 - 5 Gbps DisplayPort Alt Mode | - |
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 | No | No | Yes |
Connectivity
Information about other important connectivity technologies supported by the devices.
| Connectivity | Computer sync OTA sync Tethering | 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 AMR aptX aptX HD FLAC MP3 OGG WAV APE AWB aptX Adaptive LDAC LHDC 5. | 3GPP AAC AAC+ AMR AMR-WB aptX aptX HD eAAC+ FLAC MIDI MP3 OGG WMA WAV LDAC LDHC 5.0 | AAC AAC+ AMR AMR-WB aptX 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 MKV MP4 WebM | 3GPP AVI DivX H.263 H.264 H.265 MP4 VP8 VP9 WebM WMV Xvid | 3GPP AVI DivX H.263 H.264 H.265 MKV MP4 VC-1 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 | 8000 mAh | 13380 mAh | 7600 mAh |
| Type | Li-Polymer | Li-Polymer | Li-Polymer |
| Charger output power | 11 V / 6.1 A | 20 V / 4 A | 9 V / 2 A |
| Features | Fast charging Non-removable | Fast charging Non-removable | Fast charging Non-removable |
| 18W wired reverse charging | - | 15W charger in the box |
Additional features
Some devices have additional features, different from the standard ones above, but equally important and worth mentioning.
| Additional features | - | - | Wi-Fi only version available |
| Oppo Pad Mini | OnePlus Pad 4 | Xiaomi Redmi Pad 2 9.7 |