Xiaomi 15 (Global 512GB/12GB) vs Fairphone 4 (128GB)
Side by side comparison between Xiaomi 15 vs Fairphone 4 phones, differences, pros, cons and full specifications. What's the better?
,
6.36"
AMOLED
AMOLED
1200x2670
50
MP
MP
32mp
12GB
RAM
RAM
Octa-core
5240
mAh
mAh
(Non removable)
vs
6.3"
IPS
IPS
1080x2340
48
MP
MP
25mp
6GB
RAM
RAM
Octa-core
3905
mAh
mAh
(Removable)
What's the better phone? Xiaomi 15 (Global 512GB/12GB)
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!
32 Advantages 
2 Advantages | 25 Common items in both devices |
| Dual-LED flash |
| PDAF: phase detection autofocus |
| OIS: Optical stabilization |
| BSI sensor |
| HDR photo/video on both cameras / HDR photo on both cameras |
| f/1.6 (aperture) |
| 5G Sub6 |
| +18 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 15 (Global 512GB/12GB) | Fairphone 4 (128GB) | |
| Model | Xiaomi 15 (Global 512GB/12GB) | Fairphone 4 (128GB) |
| Other model names | Xiaomi 15 24129PN74G, 24129PN74I | Fairphone 4 (6GB RAM) |
| Country or region available |  (Global, International) |  (Europe) |
| Brand | Xiaomi | Fairphone |
| Release date | 10/29/2024 | 10/25/2021, Announced: 9/30/2021 |
| Depth | 8.4 millimeters (0.33 inches) | 10.5 millimeters (0.41 inches) |
| Size (width x height) | 71.2 x 152.3 millimeters (2.8 x 6 in) | 75.5 x 162 millimeters (2.97 x 6.38 in) |
| Weight | 192 grams (6.72 ounces) | 225 grams (7.88 ounces) |
| Build, materials | Aluminum body, glass front | Plastic body, glass front |
| Protection against water and others | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant | IP54 certified: protection against dust and splashing. MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. |
📲 Display | ||
| Xiaomi 15 (Global 512GB/12GB) | Fairphone 4 (128GB) | |
| Display type | LTPO AMOLED | TFT IPS LCD |
| Screen size | 6.36" inches | 6.3" inches |
| Screen-to-body ratio | ~90% (screen-to-body ratio) | ~79.7% (screen-to-body ratio) |
| Display resolution | 1200x2670 pixels (20:9) | 1080x2340 pixels (19.5:9) |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 460 PPI | 409 PPI |
| Colors | 68 billion | 16 million |
| Scratch-resistant glass | Dragon Crystal Glass | Gorilla Glass 5 |
| Refresh rate | 120Hz | 60Hz |
| Display features | 3200nits[peak] Dolby Vision/HDR10+ Touch Sampling Rate: 300Hz | Not supported |
🤖 Operating System | ||
| Xiaomi 15 (Global 512GB/12GB) | Fairphone 4 (128GB) | |
| System version | Android 15 | Android 11 |
| Firmware update | feature not registered | Android 13 |
| User Interface | HyperOS 2 | feature not registered |
⚙️ Processor | ||
| Xiaomi 15 (Global 512GB/12GB) | Fairphone 4 (128GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 8 Elite (SM8750-AB) (3nm) | 64bit: Qualcomm Snapdragon 750G (SM7225) (8nm) |
| CPU | Octa-core, 2 processors: 2x 4.32GHz Oryon V2 Phoenix L (Dual-core) 6x 3.53GHz Oryon V2 Phoenix M (Hexa-core) | Octa-core, 2 processors: 2x 2.2GHz Kryo 570 (Dual-core) 6x 1.8GHz Kryo 570 (Hexa-core) |
| GPU graphical controller | Qualcomm Adreno 830 (1100MHz) | Qualcomm Adreno 619 (800MHz) |
| Performance (benchmark) | AnTuTu: 2534643 (v10) Geekbench: 9419 (v6) | feature not registered |
💽 Memory and storage | ||
| Xiaomi 15 (Global 512GB/12GB) | Fairphone 4 (128GB) | |
| RAM memory | 12GB LPDDR5X | 6GB LPDDR4X |
| Internal storage | 512GB (458GB available) UFS 4.0 | 128GB (104GB available) UFS 2.1 |
| External storage | Not supported | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Xiaomi 15 (Global 512GB/12GB) | Fairphone 4 (128GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 2 slots (Dual-SIM) nano-SIM (4FF) + e-SIM | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 3000/1024 Mbps | 3000/1024 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 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 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66) TD-LTE (32, 38, 39, 40, 41, 42, 48) VoLTE | LTE Cat15 (1, 2, 3, 4, 5, 7, 8, 12, 18, 19, 20, 28, 32, 71) TD-LTE (38, 40, 41) VoLTE |
| Primary 5G network | SA/NSA/Sub6 (1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 48, 66, 75, 77, 78) | SA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 41, 71, 77, 78) |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Secondary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 66) TD-LTE (32, 38, 39, 40, 41, 42, 48) VoLTE | LTE Cat15 (1, 2, 3, 4, 5, 7, 8, 12, 18, 19, 20, 28, 32, 71) TD-LTE (38, 40, 41) VoLTE |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 |
📷 Camera | ||
| Xiaomi 15 (Global 512GB/12GB) | Fairphone 4 (128GB) | |
| Back camera (main camera) | (triple camera) 50 megapixels 50MP telephoto f/2.060mm1/2.76"0.64µmPDAFOIS2.6x-optical-zoom 50MP ultrawide f/2.214mm115°1/2.76"0.64µm | (dual camera) 48 megapixels 48MP ultrawide f/2.21/2"0.8µmPDAF+TOF3D |
| Main camera resolution | 8160x6120 pixels | 8000x6000 pixels |
| Video recording (primary) | 8K UHD (7680x4320) 30 fps | 4K UHD (3840x2160) 30 fps |
| Flash | Dual-LED flash | Dual-LED flash |
| Focal aperture | f/1.6 (aperture) | f/1.6 (aperture) |
| Focal length | 23mm (lens) | feature not registered |
| Sensor size | 1/1.31" inches | 1/2" inches |
| Pixel size | 1.2µm pixel | 0.8µm pixel |
| Autofocus | PDAF: phase detection autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | OIS: Optical stabilization |
| Zoom | Digital and optical zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Supported |
| HDR | HDR photo/video on both cameras | HDR photo on both cameras |
| Camera extras | 8K@24/30fps (HDR) 4K@24/30/60fps (HDR10+, 10-bit Dolby Vision HDR, 10-bit LOG) 1080p@30/60/120/240/960fps 720p@1920fps Leica Summilux | 4K@30fps 1080p@30/60fps |
📸 Front camera | ||
| Xiaomi 15 (Global 512GB/12GB) | Fairphone 4 (128GB) | |
| Front camera (secondary) | 32 megapixels | 25 megapixels |
| Front camera resolution | 6528x4896 pixels | 5760x4320 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | f/2.2 (aperture) |
| Focal length | 21mm (lens) | feature not registered |
| Sensor size | 1/3.14" inches | 1/2.78" inches |
| Pixel size | 0.7µm pixel | 0.9µm pixel |
🔉 Sound and multimedia | ||
| Xiaomi 15 (Global 512GB/12GB) | Fairphone 4 (128GB) | |
| Loudspeaker | Stereo sound 24-bit/192kHz Dolby Atmos Hi-Res | Mono sound (not stereo) |
| Active noise cancellation | 4 microphones | 2 microphones |
| Radio | Not supported | 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 15 (Global 512GB/12GB) | Fairphone 4 (128GB) | |
| USB | USB 3.2 Type-C, USB OTG On-The-Go | USB 3.1 Type-C, USB OTG On-The-Go |
| Audio output | Type-C reversible connector | Type-C reversible connector |
| TV output | USB Type-C (reversible) | USB Type-C SlimPort® |
| Bluetooth | 6.0 + A2DP/LE | 5.1 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac/ax/be [wifi7/6E/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 | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou, QZSS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Supported | Supported |
| Infrared port | Supported | Not supported |
🧭 Sensors | ||
| Xiaomi 15 (Global 512GB/12GB) | Fairphone 4 (128GB) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (under display) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Xiaomi 15 (Global 512GB/12GB) | Fairphone 4 (128GB) | |
| Battery type | Li-Si: lithium-silicon (Non removable) | LiPo: li-ion polymer (Removable) |
| Battery capacity | 5240 mAh | 3905 mAh |
| Charger, watts | 90W Wired fast charging Reverse charging by cable Quick Charge 3+ USB Power Delivery 3.0 | 20W Wired fast charging |
| Inductive / wireless charging | 50W Qi Wireless charging (Qi/WPC) 10W Reverse wireless charging | Not supported |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Xiaomi 15 (Global 512GB/12GB) | Fairphone 4 (128GB) | |
| 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, White, Green, Lilac, Liquid Silver • Xiaomi HyperAI | • Colors: Gray, Green, Speckled Green • Modular phone with swappable components • iFixit: 10/10 |
☢️ Radiation rate | ||
| Xiaomi 15 (Global 512GB/12GB) | Fairphone 4 (128GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.99W/kg (head), 1W/kg (body) | 0.49W/kg (head), 0.99W/kg (body) |