Xiaomi Poco X3 Pro (J20SI 128GB) vs Apple iPhone Air (256GB)
Side by side comparison between Xiaomi Poco X3 Pro vs Apple iPhone Air phones, differences, pros, cons and full specifications. What's the better?
,
6.67"
IPS
IPS
1080x2400
48
MP
MP
20mp
6GB
RAM
RAM
Octa-core
5160
mAh
mAh
(Non removable)
vs
6.5"
OLED
OLED
1260x2736
48
MP
MP
18mp
12GB
RAM
RAM
Hexa-core
3149
mAh
mAh
(Non removable)
What's the better phone? Apple iPhone Air (256GB)
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!
11 Advantages 
28 Advantages | 22 Common items in both devices |
| 120Hz |
| Dual-LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus / PDAF: phase detection autofocus on both cameras |
| HDR photo on both cameras / HDR photo/video on both cameras |
| 4K UHD (3840x2160) |
| Capacitive |
| +15 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 Poco X3 Pro (J20SI 128GB) | iPhone Air (256GB) | |
| Model | Poco X3 Pro (J20SI 128GB) | iPhone Air (256GB) |
| Other model names | POCO X3 Pro M2102J20SI (128GB+6GB RAM) | iPhone 17 Air (A3260, A3517, A3518) |
| Country or region available |  India |  (Global, International) |
| Brand | Xiaomi | Apple |
| Release date | 3/24/2021, Announced: 3/22/2021 | 9/19/2025, Announced: 9/9/2025 |
| Depth | 9.4 millimeters (0.37 inches) | 5.6 millimeters (0.22 inches) |
| Size (width x height) | 76.8 x 165.3 millimeters (3.02 x 6.51 in) | 74.7 x 156.2 millimeters (2.94 x 6.15 in) |
| Weight | 215 grams (7.53 ounces) | 165 grams (5.78 ounces) |
| Build, materials | Plastic body, glass front | Titanium frame, glass front and back Back: Ceramic Shield |
| Protection against water and others | IP53 certified: protection against dust and splashing | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant |
📲 Display | ||
| Xiaomi Poco X3 Pro (J20SI 128GB) | iPhone Air (256GB) | |
| Display type | TFT IPS LCD | LTPO Super Retina XDR OLED |
| Screen size | 6.67" inches | 6.5" inches |
| Screen-to-body ratio | ~84.6% (screen-to-body ratio) | ~88.8% (screen-to-body ratio) |
| Display resolution | 1080x2400 pixels (20:9) | 1260x2736 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 395 PPI | 463 PPI |
| Colors | 16 million | 1 billion |
| Scratch-resistant glass | Gorilla Glass 6 | Ceramic Shield 2 |
| Refresh rate | 120Hz | 120Hz |
| Display features | 450nits[typ] HDR10 | 1000nits[typ], 3000nits[peak] Dolby Vision/HDR10 Always-On Display Oleophobic coating screen True-tone Wide color gamut |
🤖 Operating System | ||
| Xiaomi Poco X3 Pro (J20SI 128GB) | iPhone Air (256GB) | |
| System version | Android 11 | iOS 26 |
| Firmware update | Android 13 | feature not registered |
| User Interface | MIUI 12.5 / 13 / 14 | feature not registered |
⚙️ Processor | ||
| Xiaomi Poco X3 Pro (J20SI 128GB) | iPhone Air (256GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 860 (SM8150-AC) (7nm) | 64bit: Apple A19 Pro (3nm) |
| 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) | Hexa-core, 2 processors: 2x 4.26GHz P-Core (Dual-core) 4x 2.2GHz E-Core (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 640 (250-672MHz) | A19 Pro GPU (5-core) |
| Performance (benchmark) | AnTuTu: 483527 (v8) Geekbench: 2574 (v5.1) GFXBench: 38fps (ES 3.1 onscreen) | AnTuTu: 2000993 (v10) Geekbench: 9682 (v6.5) |
💽 Memory and storage | ||
| Xiaomi Poco X3 Pro (J20SI 128GB) | iPhone Air (256GB) | |
| RAM memory | 6GB LPDDR4X | 12GB LPDDR5X |
| Internal storage | 128GB (106GB available) UFS 3.1 | 256GB (230GB available) NVMe (SSD) |
| External storage | Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) | Not supported |
📶 Mobile networks | ||
| Xiaomi Poco X3 Pro (J20SI 128GB) | iPhone Air (256GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) | Dual-SIM Standby - Call active on one sim card |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) | e-SIM (Eletronic) |
| Maximum Download / Upload | 800/150 Mbps | 5000/1024 Mbps |
| Network technology | 2G, 3G, 4G | 2G, 3G, 4G, 5G |
| 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 | GSM 850/900/1800/1900 | CDMA 800/1900, GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1700/1900/2100 | CDMA2000 1xEV-DO 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) | LTE Cat20 VoLTE A3517 (International): LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 30, 32, 53, 66) TD-LTE (34, 38, 39, 40, 41, 42, 48) A3260 (USA): LTE (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 53, 66, 71) TD-LTE (34, 38, 39, 40, 41, 42, 48) A3518 (Canada, Mexico, EMEA): LTE (1, 2, 3, 4, 5, 7, 8, 11, 12, 13, 14, 17, 18, 19, 20, 21, 25, 26, 28, 29, 30, 32, 53, 66, 71) TD-LTE (34, 38, 39, 40, 41, 42, 48) |
| Primary 5G network | Not supported | A3517 (International): SA/NSA/Sub6 (1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 30, 38, 40, 41, 48, 53, 66, 70, 75, 77, 78, 79) A3260 (USA): SA/NSA/Sub6 (1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 53, 66, 70, 71, 75, 77, 78, 79) A3518 (Canada, Mexico, EMEA): SA/NSA/Sub6 (1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 53, 66, 70, 71, 75, 77, 78, 79) |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6, mmWave |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat15/13 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A | Not supported |
📷 Camera | ||
| Xiaomi Poco X3 Pro (J20SI 128GB) | iPhone Air (256GB) | |
| 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 | 48 megapixels |
| Main camera resolution | 8000x6000 pixels | 8000x6000 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 4K UHD (3840x2160) 60 fps |
| Flash | Dual-LED flash | Dual-LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.6 (aperture) |
| Focal length | feature not registered | 26mm (lens) |
| Sensor size | 1/2" inches | 1/1.56" inches |
| Pixel size | 0.8µm pixel | 1µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus on both cameras |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | OIS: Optical stabilization on both cameras |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Supported |
| HDR | HDR photo on both cameras | HDR photo/video on both cameras |
| Camera extras | 1080p@960fps | 4K@24/25/30/60fps 1080p@25/30/60/120/240fps Dolby Vision (60fps) 10-bit HDR |
📸 Front camera | ||
| Xiaomi Poco X3 Pro (J20SI 128GB) | iPhone Air (256GB) | |
| Front camera (secondary) | 20 megapixels | (dual front camera) 18 megapixels 0.3MP SL 3D |
| Front camera resolution | 5184x3840 pixels | 5184x3456 pixels |
| Video recording (secondary) | Full HD (1920x1080) | 4K UHD (3840x2160) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (aperture) | f/1.9 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/3.4" inches | feature not registered |
| Pixel size | 0.8µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Xiaomi Poco X3 Pro (J20SI 128GB) | iPhone Air (256GB) | |
| Loudspeaker | Stereo sound with dual speakers | Mono sound (not stereo) Dolby Atmos Spatial Audio 3D |
| Active noise cancellation | 2 microphones or more | 2 microphones |
| Radio | FM | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Xiaomi Poco X3 Pro (J20SI 128GB) | iPhone Air (256GB) | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | USB 2.0 Type-C reversible connector |
| Audio output | 3.5mm jack | Type-C reversible connector |
| TV output | USB Type-C (reversible) | USB Type-C (reversible) |
| Bluetooth | 5.0 + A2DP/LE | 6.0 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n/ac/ax/be [wifi7/6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS, NavIC |
| NFC | Not supported | Supported |
| Infrared port | Supported | Not supported |
🧭 Sensors | ||
| Xiaomi Poco X3 Pro (J20SI 128GB) | iPhone Air (256GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Barometer Compass Face unlock 3D Gyroscope Proximity sensor UWB (Ultra Wideband) |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Xiaomi Poco X3 Pro (J20SI 128GB) | iPhone Air (256GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 5160 mAh | 3149 mAh |
| Charger, watts | 33W Wired fast charging | 30W Wired fast charging 4.5W Reverse charging by cable USB Power Delivery 2.0 |
| Inductive / wireless charging | Not supported | 25W Qi2 wireless charging |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Xiaomi Poco X3 Pro (J20SI 128GB) | iPhone Air (256GB) | |
| 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: Phantom Black, Frost Blue, Metal Bronze • Silicone Case included • Cooling up to 6 °C • LiquidCool 1.0 Plus | • Colors: Space Black, Cloud White, Light Gold, Sky Blue • Apple Intelligence • Apple Pay • Face ID • MagSafe |
☢️ Radiation rate | ||
| Xiaomi Poco X3 Pro (J20SI 128GB) | iPhone Air (256GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.99W/kg (head), 0.67W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.57W/kg (head), 0.9W/kg (body) | feature not registered |