Xiaomi Poco X3 Pro (J20SI 128GB) All specs
Full specifications phone: Xiaomi Poco X3 Pro (J20SI 128GB) specs, detailed technical information, features, price and review. All about this phone.
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The Xiaomi Poco X3 Pro (J20SI 128GB) is a good Android phone with 2.96GHz Octa-core processor that allows run games and heavy applications.
An advantage of the Xiaomi Poco X3 Pro (J20SI 128GB) is the possibility of using two mobile carriers, a Dual-SIM device with two SIM card slots.
Good connectivity of this device includes Bluetooth 5.0 + A2DP/LE, WiFi 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO, but it lacks NFC connection.
Including the battery, the Xiaomi Poco X3 Pro (J20SI 128GB) phone has 215 grams and it's a very thin device, only 9.4mm.
Summary
*depends on the model⚙️ CPU: Qualcomm Snapdragon 860 (SM8150-AC)
🔥 AnTuTu
483527 (v8)
🔥 AnTuTu
483527 (v8)
🤖 Android 11
🔄 Android 13
🔄 Android 13
📱 6.67"
TFT IPS LCD
120Hz
TFT IPS LCD
120Hz
🔳 RAM: 6GB / 8GB*
💽 ROM: 128GB / 256GB*
💽 ROM: 128GB / 256GB*
🔌 WIFI5, BT5.0, FM, NFC*
📷 (quad camera) 48MP + 8MP + 2MP + 2MP
🤳 (front) 20MP
🤳 (front) 20MP
🔋 5160mAh
⚡ 33W
⚡ 33W
📱 Model features | |
| Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Model | Poco X3 Pro (J20SI 128GB) |
| Other model names | POCO X3 Pro M2102J20SI (128GB+6GB RAM) |
| Country or region available |  India |
| Brand | Xiaomi |
| Release date | 3/24/2021, Announced: 3/22/2021 |
| Depth | 9.4 millimeters (0.37 inches) |
| Size (width x height) | 76.8 x 165.3 millimeters (3.02 x 6.51 in) |
| Weight | 215 grams (7.53 ounces) |
| Build, materials | Plastic body, glass front |
| Protection against water and others | IP53 certified: protection against dust and splashing |
📲 Display | |
| Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Display type | TFT IPS LCD |
| Screen size | 6.67" inches |
| Screen-to-body ratio | ~84.6% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) |
| Touchscreen | Capacitive Multitouch |
| Pixel density (dot pitch) | 395 PPI |
| Colors | 16 million |
| Scratch-resistant glass | Gorilla Glass 6 |
| Refresh rate | 120Hz |
| Display features | 450nits[typ] HDR10 |
🤖 Operating System | |
| Xiaomi Poco X3 Pro (J20SI 128GB) | |
| System version | Android 11 |
| Firmware update | Android 13 |
| User Interface | MIUI 12.5 / 13 / 14 |
⚙️ Processor | |
| Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 860 (SM8150-AC) (7nm) |
| CPU | Octa-core, 3 processors: 1x 2.96GHz Kryo 485 Gold (Single-core) 3x 2.42GHz Kryo 485 Gold (Triple-core) 4x 1.78GHz Kryo 485 Silver (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 640 (250-672MHz) |
| Performance (benchmark) | AnTuTu: 483527 (v8) Geekbench: 2574 (v5.1) GFXBench: 38fps (ES 3.1 onscreen) |
💽 Memory and storage | |
| Xiaomi Poco X3 Pro (J20SI 128GB) | |
| RAM memory | 6GB LPDDR4X |
| Internal storage | 128GB (106GB available) UFS 3.1 |
| External storage | Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) |
📶 Mobile networks | |
| Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 800/150 Mbps |
| Network technology | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details |
| GSM MHz band | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat15/13 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) |
| Primary 5G network | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 |
| Secondary 4G network | LTE Cat15/13 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
📷 Camera | |
| Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Back camera (main camera) | (quad camera) 48 megapixels 8MP ultrawide f/2.2119°1.0µm 2MP macro f/2.4 2MP depth f/2.4 |
| Main camera resolution | 8000x6000 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps |
| Flash | Dual-LED flash |
| Focal aperture | f/1.8 (aperture) |
| Focal length | feature not registered |
| Sensor size | 1/2" inches |
| Pixel size | 0.8µm pixel |
| Autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported |
| Image stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection |
| BSI sensor | Not supported |
| HDR | HDR photo on both cameras |
| Camera extras | 1080p@960fps |
📸 Front camera | |
| Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Front camera (secondary) | 20 megapixels |
| Front camera resolution | 5184x3840 pixels |
| Video recording (secondary) | Full HD (1920x1080) |
| Front flash | Not supported |
| Focal aperture | f/2.2 (aperture) |
| Focal length | feature not registered |
| Sensor size | 1/3.4" inches |
| Pixel size | 0.8µm pixel |
🔉 Sound and multimedia | |
| Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Loudspeaker | Stereo sound with dual speakers |
| Active noise cancellation | 2 microphones or more |
| Radio | FM |
| TV | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | |
| Xiaomi Poco X3 Pro (J20SI 128GB) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack |
| TV output | USB Type-C (reversible) |
| Bluetooth | 5.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Not supported |
| Infrared port | Supported |
🧭 Sensors | |
| Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Proximity sensor |
| Vibrating alert | Supported |
🔋 Battery | |
| Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 5160 mAh |
| Charger, watts | 33W Wired fast charging |
| Inductive / wireless charging | Not supported |
| Talk time autonomy | feature not registered |
| Standby | feature not registered |
➕ Other features | |
| Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Call control | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported |
| Video calling | Supported |
| Ringtones | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 |
| Antenna | Internal antenna |
| Qwerty physical keyboard | Not supported |
| Miscellaneous | • Colors: Phantom Black, Frost Blue, Metal Bronze • Silicone Case included • Cooling up to 6 °C • LiquidCool 1.0 Plus |
☢️ Radiation rate | |
| Xiaomi Poco X3 Pro (J20SI 128GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.99W/kg (head), 0.67W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | 0.57W/kg (head), 0.9W/kg (body) |
Xiaomi Poco X3 Pro versions (variations) with different specifications
Xiaomi Poco X3 Pro (Global 128GB)Xiaomi Poco X3 Pro (Global 256GB)Xiaomi Poco X3 Pro (J20SI 128GB) Xiaomi Poco X3 Pro (J20SI 128GB) vs 
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