Xiaomi 12S Ultra (512GB) vs Xiaomi Redmi K20 Pro (64GB)
Side by side comparison between Xiaomi 12S Ultra vs Xiaomi Redmi K20 Pro phones, differences, pros, cons and full specifications. What's the better?
,
6.73"
AMOLED
AMOLED
1440x3200
50
MP
MP
32mp
12GB
RAM
RAM
Octa-core
4860
mAh
mAh
(Non removable)
vs
6.39"
AMOLED
AMOLED
1080x2340
48
MP
MP
20mp
6GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
What's the better phone? Xiaomi 12S Ultra (512GB)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
27 Advantages 
7 Advantages | 19 Common items in both devices |
| Dual-LED flash |
| Digital and optical zoom |
| LDAF/PDAF: laser/phase detection autofocus |
| HDR photo/video on both cameras / HDR photo on both cameras |
| Capacitive |
| Multitouch |
| Accelerometer |
| +12 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| Xiaomi 12S Ultra (512GB) | Redmi K20 Pro (64GB) | |
| Model | 12S Ultra (512GB) | Redmi K20 Pro (64GB) |
| Other model names | 小米12S Ultra 5G (2203121C) 12GB RAM | Xiaomi Redmi K20 Pro M1903F11A, M1903F11C, M1903F11T |
| Country or region available |  (Global, International) |  China |
| Brand | Xiaomi | Xiaomi |
| Release date | 7/9/2022, Announced: 7/4/2022 | 6/1/2019 |
| Depth | 9 millimeters (0.35 inches) | 8.8 millimeters (0.35 inches) |
| Size (width x height) | 74.97 x 163.17 millimeters (2.95 x 6.42 in) | 74.3 x 156.7 millimeters (2.93 x 6.17 in) |
| Weight | 225 grams (7.88 ounces) | 191 grams (6.69 ounces) |
| Build, materials | Aluminum frame, glass front, leather back | Aluminum frame, glass front/back |
| Protection against water and others | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant | Not supported |
📲 Display | ||
| Xiaomi 12S Ultra (512GB) | Redmi K20 Pro (64GB) | |
| Display type | AMOLED | Super AMOLED |
| Screen size | 6.73" inches | 6.39" inches |
| Screen-to-body ratio | ~89.4% (screen-to-body ratio) | ~86.1% (screen-to-body ratio) |
| Display resolution | 1440x3200 pixels (20:9) | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 521 PPI | 403 PPI |
| Colors | 1 billion | 16 million |
| Scratch-resistant glass | Gorilla Glass Victus | Gorilla Glass 5 |
| Refresh rate | 120Hz | 60Hz |
| Display features | 1000nits[typ], 1500nits[peak] Dolby Vision/HDR10+ | 600nits[typ] HDR10 |
🤖 Operating System | ||
| Xiaomi 12S Ultra (512GB) | Redmi K20 Pro (64GB) | |
| System version | Android 12 | Android 9.0 Pie |
| Firmware update | Android 13 | feature not registered |
| User Interface | MIUI 13 / 14 | feature not registered |
⚙️ Processor | ||
| Xiaomi 12S Ultra (512GB) | Redmi K20 Pro (64GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 8+ Gen 1 (SM8475) (4nm) | 64bit: Qualcomm Snapdragon 855 (SM8150) (7nm) |
| CPU | Octa-core, 3 processors: 1x 3.19GHz ARM Cortex-X2 (Single-core) 3x 2.75GHz ARM Cortex-A710 (Triple-core) 4x 2GHz ARM Cortex-A510 (Quad-core) | Octa-core, 3 processors: 1x 2.84GHz Kryo 485 (Single-core) 3x 2.42GHz Kryo 485 (Triple-core) 4x 1.78GHz Kryo 485 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 730 (818MHz) | Qualcomm Adreno 640 (585MHz) |
| Performance (benchmark) | AnTuTu: 1039412 (v9) Geekbench: 4300 (v5.1) GFXBench: 51fps (ES 3.1 onscreen) | feature not registered |
💽 Memory and storage | ||
| Xiaomi 12S Ultra (512GB) | Redmi K20 Pro (64GB) | |
| RAM memory | 12GB LPDDR5 | 6GB LPDDR4X |
| Internal storage | 512GB (455GB available) UFS 3.1 | 64GB (49GB available) UFS 2.1 |
| External storage | Not supported | Not supported |
📶 Mobile networks | ||
| Xiaomi 12S Ultra (512GB) | Redmi K20 Pro (64GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 2000/1024 Mbps | 1024/150 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | CDMA 800, GSM 850/900/1800/1900 | CDMA 800 (China), GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO UMTS 800/850/900/1700/1900/2100 | MZB7748IN, MZB7749IN, MZB7750IN version: UMTS 850/900/1900/2100 M1903F11A, M1903F11C, M1903F11T version: CDMA2000 1xEV-DO TD-SCDMA 1900/2000 UMTS 850/900/1900/2100 |
| Primary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26) TD-LTE (34, 38, 39, 40, 41, 42) VoLTE | LTE Cat16/13 VoLTE MZB7748IN, MZB7749IN, MZB7750IN version: LTE (Bands 1, 3, 5, 7, 8) TD-LTE (Bands 38, 40, 41) M1903F11A, M1903F11C, M1903F11T version: LTE (Bands 1, 3, 5, 7, 8) TD-LTE (Bands 34, 38, 39, 40, 41) |
| Primary 5G network | SA/NSA (1, 3, 5, 8, 28, 38, 40, 41, 77, 78, 79) | Not supported |
| Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 800/850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 26) TD-LTE (34, 38, 39, 40, 41, 42) VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE |
📷 Camera | ||
| Xiaomi 12S Ultra (512GB) | Redmi K20 Pro (64GB) | |
| Back camera (main camera) | (quad camera) 50 megapixels 48MP periscope telephoto f/4.1120mm1/2"0.8µmPDAFOIS5x-optical-zoom 48MP ultrawide f/2.213mm128°1/2"0.8µmDual-PixelPDAF 0.3MP TOF 3D depth | (triple camera) 48 megapixels 8MP telephoto f/2.453mm1/4"1.12µmPDAF2x-optical-zoom 13MP ultrawide f/2.412mm1/3"1.12µm |
| Main camera resolution | 8160x6120 pixels | 8000x6000 pixels |
| Video recording (primary) | 8K UHD (7680x4320) 24 fps | 4K UHD (3840x2160) 60 fps |
| Flash | Dual-LED flash | Dual-LED flash |
| Focal aperture | f/1.9 (aperture) | f/1.8 (aperture) |
| Focal length | 23mm lens | 26mm lens |
| Sensor size | 1/1" inches | 1/2" inches |
| Pixel size | 1.6µm pixel | 0.8µm pixel |
| Autofocus | LDAF/PDAF: laser/phase detection autofocus | LDAF/PDAF: laser/phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | EIS: Digital stabilization |
| Zoom | Digital and optical zoom | Digital and optical zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Not supported |
| HDR | HDR photo/video on both cameras | HDR photo on both cameras |
| Camera extras | 4K@60fps 1080p@480fps Sony IMX989 Leica optics | feature not registered |
📸 Front camera | ||
| Xiaomi 12S Ultra (512GB) | Redmi K20 Pro (64GB) | |
| Front camera (secondary) | 32 megapixels | 20 megapixels *Motorized pop-up camera (slider) |
| Front camera resolution | 6528x4896 pixels | 5184x3840 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.4 (aperture) | f/2.2 (aperture) |
| Focal length | 25mm lens | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | 0.7µm pixel | 0.8µm pixel |
🔉 Sound and multimedia | ||
| Xiaomi 12S Ultra (512GB) | Redmi K20 Pro (64GB) | |
| Loudspeaker | Stereo sound 24-bit/192kHz Tuned by Harman Kardon | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.265, H.264, H.263, XviD |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Xiaomi 12S Ultra (512GB) | Redmi K20 Pro (64GB) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | Type-C reversible connector | 3.5mm jack |
| TV output | USB Type-C (reversible) | Not supported |
| Bluetooth | 5.2 + A2DP/LE | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac/ax [wifi6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Supported | Supported |
| Infrared port | Supported | Not supported |
🧭 Sensors | ||
| Xiaomi 12S Ultra (512GB) | Redmi K20 Pro (64GB) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (under display) Gyroscope Virtual proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Xiaomi 12S Ultra (512GB) | Redmi K20 Pro (64GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 4860 mAh | 4000 mAh |
| Charger, watts | 67W Wired fast charging Reverse charging by cable Quick Charge 4 USB Power Delivery 3.0 | 27W Wired fast charging |
| Inductive / wireless charging | 50W Qi wireless charging 10W Reverse wireless charging | feature not registered |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Xiaomi 12S Ultra (512GB) | Redmi K20 Pro (64GB) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black, Dark Green | • Colors: Carbon black, Flame red, Glacier blue • MIUI 10 • HDR display • 24-bit/192kHz audio • Quick Charge 4+ |
☢️ Radiation rate | ||
| Xiaomi 12S Ultra (512GB) | Redmi K20 Pro (64GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |