Xiaomi Redmi K20 Pro (64GB) vs Motorola Primus (XT621)
Side by side comparison between Xiaomi Redmi K20 Pro vs Motorola Primus phones, differences, pros, cons and full specifications. What's the better?
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6.39"
AMOLED
AMOLED
1080x2340
48
MP
MP
20mp
6GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
vs
What's the better phone? Xiaomi Redmi K20 Pro (64GB)
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!
29 Advantages 
3 Advantages | 11 Common items in both devices |
| 16 million |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| Proximity sensor |
| 3.5mm jack |
| +4 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 | ||
| Redmi K20 Pro (64GB) | Motorola Primus (XT621) | |
| Model | Redmi K20 Pro (64GB) | Primus (XT621) |
| Other model names | Xiaomi Redmi K20 Pro M1903F11A, M1903F11C, M1903F11T | Nextel Motorola Primus XT621, Motorola XT621 Primus |
| Country or region available |  China |   (Global, International), (Latin America) |
| Brand | Xiaomi | Motorola |
| Release date | 6/1/2019 | 1/1/2013 |
| Depth | 8.8 millimeters (0.35 inches) | 12.3 millimeters (0.48 inches) |
| Size (width x height) | 74.3 x 156.7 millimeters (2.93 x 6.17 in) | 60 x 119 millimeters (2.36 x 4.69 in) |
| Weight | 191 grams (6.69 ounces) | 145 grams (5.08 ounces) |
| Build, materials | Aluminum frame, glass front/back | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Redmi K20 Pro (64GB) | Motorola Primus (XT621) | |
| Display type | Super AMOLED | TFT LCD |
| Screen size | 6.39" inches | 4" inches |
| Screen-to-body ratio | ~86.1% (screen-to-body ratio) | ~63.8% (screen-to-body ratio) |
| Display resolution | 1080x2340 pixels (19.5:9) | 480x800 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 403 PPI | 233 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 5 | Gorilla Glass |
| Refresh rate | 60Hz | feature not registered |
| Display features | 600nits[typ] HDR10 | feature not registered |
🤖 Operating System | ||
| Redmi K20 Pro (64GB) | Motorola Primus (XT621) | |
| System version | Android 9.0 Pie | Android 2.3.6 Gingerbread |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Redmi K20 Pro (64GB) | Motorola Primus (XT621) | |
| Chipset | 64bit: Qualcomm Snapdragon 855 (SM8150) (7nm) | 32bit: Qualcomm Snapdragon S2 MSM8255T (45nm) |
| CPU | 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) | Single-core, 1 processor: 1x 1.2GHz Scorpion (Single-core) |
| GPU graphical controller | Qualcomm Adreno 640 (585MHz) | Qualcomm Adreno 205 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Redmi K20 Pro (64GB) | Motorola Primus (XT621) | |
| RAM memory | 6GB LPDDR4X | 1GB LPDDR2 |
| Internal storage | 64GB (49GB available) UFS 2.1 | 4GB (1GB available) |
| External storage | Not supported | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Redmi K20 Pro (64GB) | Motorola Primus (XT621) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Not supported |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 1024/150 Mbps | 7.2 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G |
| 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 (China), GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | 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 | iDEN 800 UMTS 2100/1900/1700 |
| Primary 4G network | 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) | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | 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 | iDEN, GPRS, EDGE, UMTS, HSDPA, HSUPA |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | Not supported |
📷 Camera | ||
| Redmi K20 Pro (64GB) | Motorola Primus (XT621) | |
| Back camera (main camera) | (triple camera) 48 megapixels 8MP telephoto f/2.453mm1/4"1.12µmPDAF2x-optical-zoom 13MP ultrawide f/2.412mm1/3"1.12µm | 5 megapixels |
| Main camera resolution | 8000x6000 pixels | 2592x1944 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 60 fps | HD (1280x720) 30 fps |
| Flash | Dual-LED flash | LED flash |
| Focal aperture | f/1.8 (aperture) | feature not registered |
| Focal length | 26mm lens | feature not registered |
| Sensor size | 1/2" inches | feature not registered |
| Pixel size | 0.8µm pixel | feature not registered |
| Autofocus | LDAF/PDAF: laser/phase detection autofocus | Not supported |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | Not supported |
| Zoom | Digital and optical zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | HDR photo on both cameras | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Redmi K20 Pro (64GB) | Motorola Primus (XT621) | |
| Front camera (secondary) | 20 megapixels *Motorized pop-up camera (slider) | Not supported |
| Front camera resolution | 5184x3840 pixels | Not supported |
| Video recording (secondary) | Full HD (1920x1080) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | 0.8µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Redmi K20 Pro (64GB) | Motorola Primus (XT621) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | Not supported |
| Radio | FM | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, AAC+ |
🔌 Connectivity | ||
| Redmi K20 Pro (64GB) | Motorola Primus (XT621) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 5.0 + A2DP/LE | 2.1 + A2DP |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Redmi K20 Pro (64GB) | Motorola Primus (XT621) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Redmi K20 Pro (64GB) | Motorola Primus (XT621) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) BP7X |
| Battery capacity | 4000 mAh | 1860 mAh |
| Charger, watts | 27W Wired fast charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Redmi K20 Pro (64GB) | Motorola Primus (XT621) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Not supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Carbon black, Flame red, Glacier blue • MIUI 10 • HDR display • 24-bit/192kHz audio • Quick Charge 4+ | • Colors: Black • Push-to-Talk (PTT) • WiFi hotspot • Java framework |
☢️ Radiation rate | ||
| Redmi K20 Pro (64GB) | Motorola Primus (XT621) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 1.23W/kg (head), 0.42W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.73W/kg (head), 0.31W/kg (body) |