Comparison between:
- Xiaomi Redmi K20
- Xiaomi Redmi K20 Pro
- Xiaomi Redmi K30 Pro
Brand and model
Information about the brand, model and model alias (if any) of a specific device.
| Xiaomi Redmi K20 | Xiaomi Redmi K20 Pro | Xiaomi Redmi K30 Pro | |
 Prices |  Prices |  Prices | |
| Model alias | MZB7757IN | Redmi K20Pro | - |
Design
Information about the dimensions and weight of the device, shown in different measurement units. Body materials, available colors, certifications.
| Width | 74.3 mm 7.43 cm 0.244 ft 2.925 in | 74.3 mm 7.43 cm 0.244 ft 2.925 in | 75.4 mm 7.54 cm 0.247 ft 2.969 in |
| Height | 156.7 mm 15.67 cm 0.514 ft 6.169 in | 156.7 mm 15.67 cm 0.514 ft 6.169 in | 163.3 mm 16.33 cm 0.536 ft 6.429 in |
| Thickness | 8.8 mm 0.88 cm 0.029 ft 0.346 in | 8.8 mm 0.88 cm 0.029 ft 0.346 in | 8.9 mm 0.89 cm 0.029 ft 0.35 in |
| Weight | 191 g 0.42 lbs 6.74 oz | 191 g 0.42 lbs 6.74 oz | 218 g 0.48 lbs 7.69 oz |
| Volume | 102.46 cm³ 6.22 in³ | 102.46 cm³ 6.22 in³ | 109.58 cm³ 6.65 in³ |
| Colors | Black Blue Red | Black Blue Red | Sky Blue Moonlight White |
| Body materials | Aluminium alloy Glass | Aluminium alloy Glass | Plastic 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 | 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) | 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 (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) |
| W-CDMA | W-CDMA 850 MHz (B5) W-CDMA 900 MHz (B8) W-CDMA 1900 MHz (B2) W-CDMA 2100 MHz (B1) | W-CDMA 850 MHz (B5) W-CDMA 900 MHz (B8) W-CDMA 1900 MHz (B2) W-CDMA 2100 MHz (B1) | W-CDMA 850 MHz (B5) W-CDMA 900 MHz (B8) W-CDMA 1900 MHz (B2) W-CDMA 2100 MHz (B1) |
| LTE | LTE-FDD 850 MHz (B5) LTE-FDD 900 MHz (B8) LTE-FDD 1800 MHz (B3) 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) | LTE-FDD 850 MHz (B5) LTE-FDD 900 MHz (B8) LTE-FDD 1800 MHz (B3) 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) | LTE-FDD 850 MHz (B5) LTE-FDD 900 MHz (B8) LTE-FDD 1800 MHz (B3) 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) |
| 5G NR | - | - | 5G-FDD 1800 MHz (n3) 5G-FDD 2100 MHz (n1) 5G-TDD 2500 MHz (n41) 5G-TDD 3500 MHz (n78) 5G-TDD 4700 MHz (n79) |
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 15 EV-DO Rev. A TD-SCDMA TD-HSDPA | UMTS EDGE GPRS HSPA+ LTE EV-DO Rev. A TD-SCDMA TD-HSDPA | EDGE GPRS HSPA+ LTE 5G NSA 5G SA |
| - | - | Snapdragon X55 modem 4x4 MIMO HPUE |
Operating system
Operating system is the system software, which manages and controls the functioning of the hardware components of the device.
| Operating system (OS) | MIUI V10.2 (Android 9.0 Pie) | MIUI V10.2 (Android 9.0 Pie) MIUI V10.3.5.0 (Android 9.0 Pie) MIUI V11 (Android 10) | MIUI 11 (Android 10) |
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 730 | Qualcomm Snapdragon 855 | Qualcomm Snapdragon 865 |
| Process technology | 8 nm | 7 nm | 7 nm |
| CPU | 2x 2.2 GHz Kryo 470, 6x 1.8 GHz Kryo 470 | 1x 2.84 GHz Kryo 485, 3x 2.42 GHz Kryo 485, 4x 1.8 GHz Kryo 485 | 1x 2.84 GHz Kryo 585, 3x 2.42 GHz Kryo 585, 4x 1.8 GHz Kryo 585 |
| CPU bits | 64 bit | 64 bit | 64 bit |
| Instruction set | ARMv8 | ARMv8-A | ARMv8-A |
| CPU cores | 8 | 8 | 8 |
| CPU frequency | 2200 MHz | 2840 MHz | 2840 MHz |
| GPU | Qualcomm Adreno 618 | Qualcomm Adreno 640 | Qualcomm Adreno 650 |
| GPU frequency | - | - | 587 MHz |
| RAM capacity | 6 GB 8 GB | 6 GB 8 GB 12 GB | 6 GB 8 GB |
| RAM type | LPDDR4X | LPDDR4X | LPDDR5 |
| RAM channels | Double channel | Double channel | Double channel |
| RAM frequency | 1866 MHz | 2133 MHz | 2750 MHz |
| Mi Turbo Game Turbo 2.0 | Mi Turbo Game Turbo 2.0 | Gen 5 AI Engine Sandwich motherboard VC stereo cooling system 6GB - LPDDR4X |
Storage
Every mobile device has a built-in storage (internal memory) with a fixed capacity.
| Storage | 64 GB 128 GB 256 GB | 64 GB 128 GB 256 GB | 128 GB 256 GB |
| UFS 2.1 | UFS 2.1 | 128GB - UFS 3.0 256GB - USB 3.1 |
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 | Super AMOLED | Super AMOLED | AMOLED |
| Diagonal size | 6.39 in 162.31 mm 16.23 cm | 6.39 in 162.31 mm 16.23 cm | 6.67 in 169.42 mm 16.94 cm |
| Width | 2.68 in 68.02 mm 6.8 cm | 2.68 in 68.02 mm 6.8 cm | 2.74 in 69.52 mm 6.95 cm |
| Height | 5.8 in 147.37 mm 14.74 cm | 5.8 in 147.37 mm 14.74 cm | 6.08 in 154.5 mm 15.45 cm |
| Aspect ratio | 2.167:1 | 2.167:1 | 2.222:1 |
| Resolution | 1080 x 2340 pixels | 1080 x 2340 pixels | 1080 x 2400 pixels |
| Pixel density | 403 ppi 158 ppcm | 403 ppi 158 ppcm | 395 ppi 155 ppcm |
| Color depth | 24 bit 16777216 colors | 24 bit 16777216 colors | 24 bit 16777216 colors |
| Display area | 86.37 % | 86.37 % | 87.52 % |
| Other features | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch Scratch resistant | Capacitive Multi-touch Scratch resistant |
| Corning Gorilla Glass 6 2.5D curved glass screen 60000:1 contrast ratio 430 cd/m² Peak brightness - 600 cd/m² 103.8% NTSC Always-On Display DCI-P3 HDR10 | Corning Gorilla Glass 6 2.5D curved glass screen 60000:1 contrast ratio 430 cd/m² Peak brightness - 600 cd/m² 103.8% NTSC Always-On Display DCI-P3 HDR10 | Display manufacturer - Samsung New generation E3 light-emitting material Corning Gorilla Glass 5 2.5D curved glass screen TUV Rheinland Global Eye Care Certification HDR10+ 100% DCI-P3 500 cd/m² typical brightness Peak brightness - 1200 cd/m² |
Sensors
Different sensors measure different physical quantities and convert them into signals recognizable by the mobile device.
| Sensors | Proximity Light Accelerometer Compass Gyroscope Barometer Fingerprint Hall | Proximity Light Accelerometer Compass Gyroscope Fingerprint Hall | Light Accelerometer Compass Gyroscope Barometer Fingerprint Hall Ultrasonic distance sensor |
| In-display fingerprint sensor Step detector Step counter | In-display optical fingerprint sensor Step detector Step counter | In-display 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 | Sony IMX582 Exmor RS | Sony IMX586 Exmor RS | Sony IMX686 |
| Sensor type | CMOS BSI | CMOS BSI | CMOS BSI |
| Sensor format | 1/2" | 1/2" | 1/1.7" |
| Pixel size | 0.8 µm 0.000800 mm | 0.8 µm 0.000800 mm | 0.8 µm 0.000800 mm |
| ISO | 100 - 3200 | 100 - 3200 | - |
| Aperture | f/1.75 | f/1.75 | f/1.89 |
| Focal length and 35 mm equivalent | 4.77 mm 26 mm *(35 mm / full frame) | 26 mm *(35 mm / full frame) | 5.43 mm |
| Field of view | - | 79.4 ° | 79 ° |
| Number of lenses | 6 | 6 | 6 |
| Flash type | Dual LED | Dual LED | Dual LED |
| Image resolution | 8000 x 6000 pixels 48 MP | 8000 x 6000 pixels 48 MP | 9248 x 6944 pixels 64.22 MP |
| Video resolution | 3840 x 2160 pixels 8.29 MP | 3840 x 2160 pixels 8.29 MP | 7680 x 4320 pixels 33.18 MP |
| Video FPS | 30 fps | 60 fps | 30 fps |
| Features | Autofocus Continuous shooting Digital zoom Optical zoom Digital image stabilization Geotagging Panorama HDR Touch focus Face detection White balance settings ISO settings Exposure compensation Self-timer Scene mode Macro mode RAW Phase detection autofocus (PDAF) Contrast detection autofocus (CDAF) | Autofocus Continuous shooting Digital zoom Optical 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) Contrast detection autofocus (CDAF) Laser autofocus (LAF) RAW | Autofocus Continuous shooting Digital zoom Digital image stabilization Optical 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) RAW |
| Pixel size - 1.6 μm (4-in-1 pixel binning) 1080p @ 960 fps 720p @ 960 fps Secondary rear camera - 8 MP (telephoto) Sensor model - OmniVision OV8856 (#2) Sensor type - PureCel (#2) Sensor size - 3.6783 x 2.76768 mm (#2) Aperture size - f/2.4 (#2) 5-element lens (#2) Focal length (35 mm equivalent) - 52 mm (#2) Angle of view - 44.6° (#2) 2x Optical zoom (#2) Third rear camera - 13 MP (ultra-wide angle) Sensor model - Samsung S5K3L6 (#3) Sensor type - ISOCELL (#3) Sensor size - 1/3.1" (#3) Pixel size - 1.12 μm (#3) Aperture size - f/2.4 (#3) 5-element lens (#3) Focal length (35 mm equivalent) - 15 mm (#3) Angle of view - 124.8° (#3) | Pixel size - 1.6 μm (4-in-1 pixel binning) 1080p @ 960 fps 720p @ 960 fps Secondary rear camera - 8 MP (telephoto) Sensor model - OmniVision OV8856 (#2) Sensor type - PureCel (#2) Sensor size - 3.6783 x 2.76768 mm (#2) Aperture size - f/2.4 (#2) 5-element lens (#2) Focal length (35 mm equivalent) - 52 mm (#2) Angle of view - 44.6°(#2) 2x Optical zoom (#2) Third rear camera - 13 MP (ultra-wide angle) Sensor model - Samsung S5K3L6 (#3) Sensor type - ISOCELL (#3) Sensor size - 1/3.1" (#3) Pixel size - 1.12 μm (#3) Aperture size - f/2.4 (#3) 5-element lens (#3) Focal length (35 mm equivalent) - 15 mm (#3) Angle of view - 124.8° (#3) | Pixel size - 1.6 μm (4-in-1 pixel binning) 1080p @ 960 fps Secondary rear camera - 13 MP (ultra-wide angle) Sensor model - OmniVision OV13B10 (#2) Angle of view - 123° (#2) Aperture size - f/2.2 (#2) Third rear camera - 5 MP (depth-sensing) Sensor model - OmniVision OV08A10 (#3) Pixel size - 1.75 μm (#3) Aperture size - f/2.4 (#3) Fourth rear camera - 5 MP (macro) Sensor model - Samsung S5K5E9YX04 (#4) Autofocus (#4) Macro shooting distance - 3-7 cm (#4) Focal length (35 mm equivalent) - 50 mm (#4) |
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 S5K3T2 |
| Sensor format | - | - | 1/3.4" |
| Pixel size | 0.8 µm 0.000800 mm | 0.8 µm 0.000800 mm | 0.8 µm 0.000800 mm |
| Aperture | f/2.2 | f/2.2 | f/2.24 |
| Focal length and 35 mm equivalent | 3.52 mm 18 mm *(35 mm / full frame) | 18 mm *(35 mm / full frame) | 3.14 mm |
| Field of view | - | - | 78 ° |
| Image resolution | 5184 x 3880 pixels 20.11 MP | 5184 x 3880 pixels 20.11 MP | 5184 x 3800 pixels 19.7 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 unlock HDR |
| Mechanical pop-up front camera Sapphire glass cover | Mechanical pop-up front camera Sapphire glass cover | Mechanical pop-up camera |
Audio
Information about the type of speakers and the audio technologies supported by the device.
| Speaker | Loudspeaker Earpiece | Loudspeaker Earpiece | Loudspeaker Earpiece |
| Smart PA | Smart PA | 1216 super linear speaker Smart PA Hi-Res audio Linear motor |
Radio
The radio in a mobile device is a built-in FM radio receiver.
| Radio | No | No | Yes |
Tracking/Positioning
Information about the positioning and navigation technologies supported by the device.
| Tracking/Positioning | GPS A-GPS GLONASS BeiDou | A-GPS GPS (L1+L5) GLONASS (L1) BeiDou (B1) Galileo (E1+E5a) | A-GPS GPS (L1+L5) GLONASS (G1) BeiDou (B1+B2a) Galileo (E1+E5a) QZSS (L1+L5) |
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 | 802.11a 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 802.11ax |
| 2x2 MiMO | 2x2 MiMO | - |
Bluetooth
Bluetooth is a standard for secure wireless data transfer between different types of devices over short distances.
| Version | 5.0 | 5.0 | 5.1 |
| Features | A2DP LE | A2DP LE | A2DP LE |
| - | - | Qualcomm TrueWireless Stereo Plus |
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 | 2.0 | 2.0 | 2.0 |
| Features | Charging Host Mass storage On-The-Go | Charging Host 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 DLNA NFC VoLTE | Computer sync OTA sync Tethering DLNA NFC VoLTE | Computer sync Infrared Tethering NFC VoLTE |
| - | NFC not available for model variant MZB7748IN (India-bound) | - |
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 aptX aptX HD eAAC+ FLAC MIDI MP3 OGG WMA WAV LDAC | AAC AAC+ AMR AMR-WB aptX aptX HD eAAC+ FLAC MIDI MP3 OGG WMA WAV LDAC | AAC AAC+ AMR AMR-WB aptX aptX HD eAAC+ FLAC MIDI MP3 OGG WMA WAV aptX-Adaptive |
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 MP4 VC-1 Xvid | 3GPP AVI DivX H.263 H.264 H.265 MKV MP4 VC-1 Xvid | 3GPP AVI DivX 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 | 4000 mAh | 4000 mAh | 4700 mAh |
| Type | Li-Polymer | Li-Polymer | Li-Polymer |
| Charger output power | 5 V / 3 A 9 V / 2 A 12 V / 1.5 A | 5 V / 3 A 9 V / 2 A 12 V / 1.5 A | 10 V / 3.3 A |
| Quick charge technology | Qualcomm Quick Charge 4+ | Qualcomm Quick Charge 4+ | Qualcomm Quick Charge 4+, Power Delivery charging |
| Features | Fast charging 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 | M1903F10L - SAR (Specific Absorption Rate) India: head - 1.070 W/kg; body - 0.723 W/kg | M1903F11L - SAR (Specific Absorption Rate) India: head - 1.030 W/kg; body - 0.720 W/kg | - |
| Xiaomi Redmi K20 | Xiaomi Redmi K20 Pro | Xiaomi Redmi K30 Pro |