Fairphone 4 (256GB) vs Asus Zenfone 3 Ultra (ZU680KL 128GB)
Side by side comparison between Fairphone 4 vs Asus Zenfone 3 Ultra phones, differences, pros, cons and full specifications. What's the better?
,
6.3"
IPS
IPS
1080x2340
48
MP
MP
25mp
8GB
RAM
RAM
Octa-core
3905
mAh
mAh
(Removable)
vs
6.8"
IPS+
IPS+
1080x1920
23
MP
MP
8mp
4GB
RAM
RAM
Octa-core
4600
mAh
mAh
(Non removable)
What's the better phone? Fairphone 4 (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!
22 Advantages 
5 Advantages | 21 Common items in both devices |
| TFT IPS LCD / TFT Super IPS+ |
| 16 million |
| Dual-LED flash |
| Only digital zoom |
| PDAF: phase detection autofocus / LDAF/PDAF: laser/phase detection autofocus |
| OIS: Optical stabilization / OIS (4-axis): Optical stabilization |
| HDR photo on both cameras |
| +14 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 | ||
| Fairphone 4 (256GB) | Asus Zenfone 3 Ultra (ZU680KL 128GB) | |
| Model | Fairphone 4 (256GB) | Zenfone 3 Ultra (ZU680KL 128GB) |
| Other model names | Fairphone 4 (8GB RAM) | Asus Zenfone 3 Ultra 4GB/128GB ZU680KL DualSim, Asus Mercury |
| Country or region available |  (Europe) |  (Global, International) |
| Brand | Fairphone | Asus |
| Release date | 10/25/2021, Announced: 9/30/2021 | 8/1/2016 |
| Depth | 10.5 millimeters (0.41 inches) | 6.8 millimeters (0.27 inches) |
| Size (width x height) | 75.5 x 162 millimeters (2.97 x 6.38 in) | 93.9 x 186.4 millimeters (3.7 x 7.34 in) |
| Weight | 225 grams (7.88 ounces) | 233 grams (8.16 ounces) |
| Build, materials | Plastic body, glass front | feature not registered |
| Protection against water and others | IP54 certified: protection against dust and splashing. MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. | Not supported |
📲 Display | ||
| Fairphone 4 (256GB) | Asus Zenfone 3 Ultra (ZU680KL 128GB) | |
| Display type | TFT IPS LCD | TFT Super IPS+ |
| Screen size | 6.3" inches | 6.8" inches |
| Screen-to-body ratio | ~79.7% (screen-to-body ratio) | ~72.8% (screen-to-body ratio) |
| Display resolution | 1080x2340 pixels (19.5:9) | 1080x1920 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 409 PPI | 324 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 5 | Gorilla Glass 4 |
| Refresh rate | 60Hz | feature not registered |
| Display features | Not supported | feature not registered |
🤖 Operating System | ||
| Fairphone 4 (256GB) | Asus Zenfone 3 Ultra (ZU680KL 128GB) | |
| System version | Android 11 | Android 6.0.1 Marshmallow |
| Firmware update | Android 12 | Android 8.0 Oreo |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Fairphone 4 (256GB) | Asus Zenfone 3 Ultra (ZU680KL 128GB) | |
| Chipset | 64bit: Qualcomm Snapdragon 750G (SM7225) (8nm) | 64bit: Qualcomm Snapdragon 652 MSM8976 (28nm) |
| CPU | Octa-core, 2 processors: 2x 2.2GHz Kryo 570 (Dual-core) 6x 1.8GHz Kryo 570 (Hexa-core) | Octa-core, 2 processors: 4x 1.8GHz ARM Cortex-A72 (Quad-core) 4x 1.4GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 619 (800MHz) | Qualcomm Adreno 510 600Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Fairphone 4 (256GB) | Asus Zenfone 3 Ultra (ZU680KL 128GB) | |
| RAM memory | 8GB LPDDR4X | 4GB LPDDR4 |
| Internal storage | 256GB (220GB available) UFS 2.1 | 128GB (118GB available) |
| External storage | Until 1TB microSD, microSDXC (dedicated slot) | Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) |
📶 Mobile networks | ||
| Fairphone 4 (256GB) | Asus Zenfone 3 Ultra (ZU680KL 128GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | 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) | 2 slots (Dual-SIM) micro-SIM (3FF) and nano-SIM (4FF) |
| Maximum Download / Upload | 3000/1024 Mbps | 300/50 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 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 850/900/1700/1900/2100 | Global version: UMTS 800/850/900/1900/2100 China version: CDMA2000, TD-SCDMA 1900/2000 UMTS 800/850/900/1900/2100 |
| Primary 4G network | LTE Cat15 (1, 2, 3, 4, 5, 7, 8, 12, 18, 19, 20, 28, 32, 71) TD-LTE (38, 40, 41) VoLTE | LTE Cat6 Global version: LTE (Bands 1,3,5,7,8,18,19,20,26,28) TD-LTE (Bands 38,40,41) China version: LTE (Bands 1,3,5,7,8,18,19,20,26,28) TD-LTE (Bands 38,39,40,41) |
| Primary 5G network | SA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 41, 71, 77, 78) | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | GPRS, EDGE, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat15 (1, 2, 3, 4, 5, 7, 8, 12, 18, 19, 20, 28, 32, 71) TD-LTE (38, 40, 41) VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | GPRS, EDGE |
📷 Camera | ||
| Fairphone 4 (256GB) | Asus Zenfone 3 Ultra (ZU680KL 128GB) | |
| Back camera (main camera) | (dual camera) 48 megapixels 48MP ultrawide f/2.21/2"0.8µmPDAF+TOF3D | 23 megapixels |
| Main camera resolution | 8000x6000 pixels | 5520x4140 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | 4K UHD (3840x2160) 24 fps |
| Flash | Dual-LED flash | Dual-LED flash |
| Focal aperture | f/1.6 (aperture) | f/2.0 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/2" inches | 1/2.6" inches |
| Pixel size | 0.8µm pixel | 1.12µm pixel |
| Autofocus | PDAF: phase detection autofocus | LDAF/PDAF: laser/phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | OIS (4-axis): Optical 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 on both cameras | HDR photo on both cameras |
| Camera extras | 4K@30fps 1080p@30/60fps | feature not registered |
📸 Front camera | ||
| Fairphone 4 (256GB) | Asus Zenfone 3 Ultra (ZU680KL 128GB) | |
| Front camera (secondary) | 25 megapixels | 8 megapixels |
| Front camera resolution | 5760x4320 pixels | 3264x2448 pixels |
| Video recording (secondary) | Full HD (1920x1080) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (aperture) | f/2.0 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/2.78" inches | feature not registered |
| Pixel size | 0.9µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Fairphone 4 (256GB) | Asus Zenfone 3 Ultra (ZU680KL 128GB) | |
| Loudspeaker | Mono sound (not stereo) | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | Not supported | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, eAAC+, FLAC |
🔌 Connectivity | ||
| Fairphone 4 (256GB) | Asus Zenfone 3 Ultra (ZU680KL 128GB) | |
| USB | USB 3.1 Type-C, USB OTG On-The-Go | USB 2.0 Type-C reversible connector |
| Audio output | Type-C reversible connector | 3.5mm jack |
| TV output | USB Type-C SlimPort® | USB Type-C SlimPort® |
| Bluetooth | 5.1 + A2DP/LE | 4.2 + A2DP |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging, GLONASS, BeiDou |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Supported |
🧭 Sensors | ||
| Fairphone 4 (256GB) | Asus Zenfone 3 Ultra (ZU680KL 128GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Fingerprint sensor Gyroscope Hall effect Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Fairphone 4 (256GB) | Asus Zenfone 3 Ultra (ZU680KL 128GB) | |
| Battery type | LiPo: li-ion polymer (Removable) | Li-Ion: lithium-ion (Non removable) |
| Battery capacity | 3905 mAh | 4600 mAh |
| Charger, watts | 20W Wired fast charging | 18W (9V/2A) Wired fast charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | feature not registered | 34 hours (1.4 days) |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Fairphone 4 (256GB) | Asus Zenfone 3 Ultra (ZU680KL 128GB) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, 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 | 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: Gray, Green, Speckled Green • Modular phone with swappable components • iFixit: 10/10 | • Colors: Titanium Gray, Glacier Silver, Rose Gold • USB OTG On-The-Go • Asus ZenUI 3.0 • Sony IMX318 sensor camera • DTS headphone • Hi-Res audio 192kHz/24bit • Quick Charge 3.0 • Fast charging battery: 60% in 45min • Miracast |
☢️ Radiation rate | ||
| Fairphone 4 (256GB) | Asus Zenfone 3 Ultra (ZU680KL 128GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.49W/kg (head), 0.99W/kg (body) | feature not registered |