Apple iPhone 4 (16GB) vs Xiaomi Poco X3 Pro (J20SI 128GB)
Side by side comparison between Apple iPhone 4 vs Xiaomi Poco X3 Pro phones, differences, pros, cons and full specifications. What's the better?
,
3.5"
IPS
IPS
640x960
5
MP
MP
0.3mp
512MB
RAM
RAM
Single-core
1420
mAh
mAh
(Non removable)
vs
6.67"
IPS
IPS
1080x2400
48
MP
MP
20mp
6GB
RAM
RAM
Octa-core
5160
mAh
mAh
(Non removable)
What's the better phone? Xiaomi Poco X3 Pro (J20SI 128GB)
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!
5 Advantages 
34 Advantages | 19 Common items in both devices |
| 16 million |
| Only digital zoom |
| Autofocus / PDAF: phase detection autofocus |
| EIS: Digital stabilization |
| 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 | ||
| iPhone 4 (16GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Model | iPhone 4 (16GB) | Poco X3 Pro (J20SI 128GB) |
| Other model names | iPhone 4 | POCO X3 Pro M2102J20SI (128GB+6GB RAM) |
| Country or region available |  (Global, International) |  India |
| Brand | Apple | Xiaomi |
| Release date | 6/1/2010 | 3/24/2021, Announced: 3/22/2021 |
| Depth | 9.3 millimeters (0.37 inches) | 9.4 millimeters (0.37 inches) |
| Size (width x height) | 58.66 x 115.2 millimeters (2.31 x 4.54 in) | 76.8 x 165.3 millimeters (3.02 x 6.51 in) |
| Weight | 137 grams (4.8 ounces) | 215 grams (7.53 ounces) |
| Build, materials | Stainless steel body, glass front/back | Plastic body, glass front |
| Protection against water and others | Not supported | IP53 certified: protection against dust and splashing |
📲 Display | ||
| iPhone 4 (16GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Display type | TFT LED-Backlit IPS LCD | TFT IPS LCD |
| Screen size | 3.5" inches | 6.67" inches |
| Screen-to-body ratio | ~54% (screen-to-body ratio) | ~84.6% (screen-to-body ratio) |
| Display resolution | 640x960 pixels (3:2) | 1080x2400 pixels (20:9) |
| Touchscreen | Capacitive Multitouch 5-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 330 PPI | 395 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass | Gorilla Glass 6 |
| Refresh rate | 60Hz | 120Hz |
| Display features | Not supported | 450nits[typ] HDR10 |
🤖 Operating System | ||
| iPhone 4 (16GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| System version | iOS 4.0 | Android 11 |
| Firmware update | iOS 7.0 | Android 13 |
| User Interface | feature not registered | MIUI 12.5 / 13 / 14 |
⚙️ Processor | ||
| iPhone 4 (16GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Chipset | 32bit: Apple A4 (45nm) | 64bit: Qualcomm Snapdragon 860 (SM8150-AC) (7nm) |
| CPU | Single-core, 1 processor: 1x 1GHz ARM Cortex-A8 (Single-core) | 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 | PowerVR SGX535 | Qualcomm Adreno 640 (250-672MHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 483527 (v8) Geekbench: 2574 (v5.1) GFXBench: 38fps (ES 3.1 onscreen) |
💽 Memory and storage | ||
| iPhone 4 (16GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| RAM memory | 512MB LPDDR | 6GB LPDDR4X |
| Internal storage | 16GB (14GB available) Flash (EEPROM) | 128GB (106GB available) UFS 3.1 |
| External storage | Not supported | Until 1TB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) |
📶 Mobile networks | ||
| iPhone 4 (16GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) |
| SIM card | 1 slot (Single-SIM) micro-SIM (3FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 7.2/5.76 Mbps | 800/150 Mbps |
| Network technology | 2G, 3G | 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 | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | Not supported | LTE Cat15/13 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | CSD, GPRS, EDGE, UMTS, HSDPA, HSUPA | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | UMTS 850/900/1700/1900/2100 |
| Secondary 4G network | Not supported | LTE Cat15/13 (1, 2, 3, 4, 5, 7, 8, 20, 28) TD-LTE (38, 40, 41) |
| Secondary data network | Not supported | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
📷 Camera | ||
| iPhone 4 (16GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Back camera (main camera) | 5 megapixels | (quad camera) 48 megapixels 8MP ultrawide f/2.2119°1.0µm 2MP macro f/2.4 2MP depth f/2.4 |
| Main camera resolution | 2592x1936 pixels | 8000x6000 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | Dual-LED flash |
| Focal aperture | f/2.8 (aperture) | f/1.8 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/3.2" inches | 1/2" inches |
| Pixel size | 1.75µm pixel | 0.8µm pixel |
| Autofocus | Autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | EIS: Digital stabilization | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Not supported |
| HDR | HDR photo only main camera | HDR photo on both cameras |
| Camera extras | feature not registered | 1080p@960fps |
📸 Front camera | ||
| iPhone 4 (16GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Front camera (secondary) | 0.3 megapixels | 20 megapixels |
| Front camera resolution | 640x480 pixels | 5184x3840 pixels |
| Video recording (secondary) | VGA (720x480) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.2 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | 1/3.4" inches |
| Pixel size | feature not registered | 0.8µm pixel |
🔉 Sound and multimedia | ||
| iPhone 4 (16GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Loudspeaker | Mono sound (not stereo) | Stereo sound with dual speakers |
| Active noise cancellation | 1 microphone | 2 microphones or more |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MPEG4 | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, iTunes | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| iPhone 4 (16GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| USB | USB 2.0 proprietary connector | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Proprietary TV-out | USB Type-C (reversible) |
| Bluetooth | 2.1 + A2DP | 5.0 + A2DP/LE |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Supported |
🧭 Sensors | ||
| iPhone 4 (16GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Sensors | Accelerometer Compass Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| iPhone 4 (16GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 1420 mAh | 5160 mAh |
| Charger, watts | 5W (5V/1A) Wired charging | 33W Wired fast charging |
| Inductive / wireless charging | Not supported | Not supported |
| Talk time autonomy | 12 hours | feature not registered |
| Standby | 300 hours (12.5 days) | feature not registered |
➕ Other features | ||
| iPhone 4 (16GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS, 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 with tutorial | 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, White • Videocalling over Wi-Fi only • iCloud service | • Colors: Phantom Black, Frost Blue, Metal Bronze • Silicone Case included • Cooling up to 6 °C • LiquidCool 1.0 Plus |
☢️ Radiation rate | ||
| iPhone 4 (16GB) | Xiaomi Poco X3 Pro (J20SI 128GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 1.17W/kg (head), 1.11W/kg (body) | 0.99W/kg (head), 0.67W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | 0.93W/kg (head), 0.74W/kg (body) | 0.57W/kg (head), 0.9W/kg (body) |