Fairphone 6 vs Lenovo K900
Side by side comparison between Fairphone 6 vs Lenovo K900 phones, differences, pros, cons and full specifications. What's the better?
,
6.31"
OLED
OLED
1116x2484
50
MP
MP
32mp
8GB
RAM
RAM
Octa-core
4415
mAh
mAh
(Removable)
vs
5.5"
IPS
IPS
1080x1920
13
MP
MP
2.1mp
2GB
RAM
RAM
Dual-core
2500
mAh
mAh
(Non removable)
What's the better phone? Fairphone 6
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!
28 Advantages 
4 Advantages | 15 Common items in both devices |
| Only digital zoom |
| PDAF on back camera and autofocus front camera / Autofocus |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| Compass |
| +8 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 6 | Lenovo K900 | |
| Change model | ||
| Model | Fairphone 6 | Lenovo K900 |
| Other model names | Fairphone (Gen. 6) | Lenovo IdeaPhone K900, Lenovo K900 Idea Phone |
| Country or region available |   (Europe), (Global, International) | feature not registered |
| Brand | Fairphone | Lenovo |
| Release date | 6/25/2025 | 4/1/2013 |
| Depth | 9.6 millimeters (0.38 inches) | 6.9 millimeters (0.27 inches) |
| Size (width x height) | 73.3 x 156.5 millimeters (2.89 x 6.16 in) | 78 x 157 millimeters (3.07 x 6.18 in) |
| Weight | 193 grams (6.76 ounces) | 162 grams (5.67 ounces) |
| Build, materials | Aluminum body, glass front, plastic back | feature not registered |
| Protection against water and others | IP55 certified: dust resistant and protection from short-term exposure to water jets MIL-STD-810H military certified: rigorous testing for salt, dust, humidity, rain, vibration, solar radiation, drop and thermal shock resistance. | Not supported |
📲 Display | ||
| Fairphone 6 | Lenovo K900 | |
| Display type | LTPO OLED | TFT IPS LCD |
| Screen size | 6.31" inches | 5.5" inches |
| Screen-to-body ratio | ~83.7% (screen-to-body ratio) | ~68.1% (screen-to-body ratio) |
| Display resolution | 1116x2484 pixels (20:9) | 1080x1920 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 432 PPI | 401 PPI |
| Colors | 1 billion | 16 million |
| Scratch-resistant glass | Gorilla Glass 7i | Gorilla Glass 2 |
| Refresh rate | 120Hz | feature not registered |
| Display features | 880nits[typ], 1400nits[peak] | feature not registered |
🤖 Operating System | ||
| Fairphone 6 | Lenovo K900 | |
| System version | Android 15 | Android 4.2.1 Jelly Bean |
| Firmware update | Android 16 | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Fairphone 6 | Lenovo K900 | |
| Chipset | 64bit: Qualcomm Snapdragon 7s Gen 3 (SM7635) (4nm) | 32bit: Intel Atom Z2580 |
| CPU | Octa-core, 3 processors: 1x 2.5GHz ARM Cortex-A720 (Single-core) 3x 2.4GHz ARM Cortex-A720 (Triple-core) 4x 1.8GHz ARM Cortex-A520 (Quad-core) | Dual-core, 1 processor: 2x 2GHz Atom (Dual-core) |
| GPU graphical controller | Qualcomm Adreno 810 (1GHz) | PowerVR SGX544 MP2 |
| Performance (benchmark) | AnTuTu: 786958 (v10) | feature not registered |
💽 Memory and storage | ||
| Fairphone 6 | Lenovo K900 | |
| RAM memory | 8GB LPDDR5 | 2GB |
| Internal storage | 256GB (220GB available) UFS 3.1 | 16GB |
| External storage | Until 2TB microSD, microSDXC (dedicated slot) | Until 32GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Fairphone 6 | Lenovo K900 | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) + e-SIM | 2 slots (Dual-SIM) |
| Maximum Download / Upload | 3000/1024 Mbps | 21/5.76 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 2G, 3G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Tri-Band 900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 900/1800/1900 |
| Primary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 2100 |
| Primary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 25, 26, 28, 32, 66, 71) TD-LTE (38, 40, 41, 42) VoLTE | Not supported |
| Primary 5G network | SA/NSA/Sub6 (1, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 71, 77, 78) | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ |
| Secondary 2G network | Not supported | GSM 900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | GPRS, EDGE |
📷 Camera | ||
| Fairphone 6 | Lenovo K900 | |
| Back camera (main camera) | (triple camera) 50 megapixels 13MP ultrawide f/2.21/3.06"1.12μmPDAF 0.3MP depth TOF-3D | 13 megapixels |
| Main camera resolution | 8160x6120 pixels | 4128x3096 pixels |
| Video recording (primary) | 4K UHD (3840x2160) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | Dual-LED flash | LED flash |
| Focal aperture | f/1.6 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/1.56" inches | feature not registered |
| Pixel size | 1µm pixel | feature not registered |
| Autofocus | PDAF on back camera and autofocus front camera | Autofocus |
| Touch focus | Supported | feature not registered |
| Image stabilization | OIS: Optical stabilization | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection |
| BSI sensor | Supported | feature not registered |
| HDR | HDR photo on both cameras | feature not registered |
| Camera extras | 4K@30fps 1080p@30/60/120fps 720p@240fps Sony Lytia 700C Samsung KD1 | feature not registered |
📸 Front camera | ||
| Fairphone 6 | Lenovo K900 | |
| Front camera (secondary) | 32 megapixels | 2.1 megapixels |
| Front camera resolution | 6528x4896 pixels | 1920x1080 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.0 (aperture) | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/3.42" inches | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| Fairphone 6 | Lenovo K900 | |
| Loudspeaker | Stereo sound | Supported |
| Active noise cancellation | 2 microphones | feature not registered |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263, WMV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, WMA, eAAC+ |
🔌 Connectivity | ||
| Fairphone 6 | Lenovo K900 | |
| USB | USB 2.0 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | Type-C reversible connector | 3.5mm jack |
| TV output | USB Type-C (reversible) | Not supported |
| Bluetooth | 5.4 + A2DP/LE | 4.0 + A2DP |
| WiFi | 802.11 a/b/g/n/ac/ax [wifi6E/6] (2.4GHz, 5GHz, 6GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) |
| DLNA | Not supported | feature not registered |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Not supported | feature not registered |
🧭 Sensors | ||
| Fairphone 6 | Lenovo K900 | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock 2D Fingerprint sensor (side-mounted) Gyroscope Hall effect Proximity sensor | Accelerometer Ambient light sensor Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Fairphone 6 | Lenovo K900 | |
| Battery type | Li-Ion: lithium-ion (Removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 4415 mAh | 2500 mAh |
| Charger, watts | 30W Wired fast charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Fairphone 6 | Lenovo K900 | |
| 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, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Horizon Black, Cloud White, Forest Green iFixit: 10/10 | • Colors: Gray, Black • BSI sensor • Touch focus • WiFi dual band • WiFi hotspot • Active noise cancellation with dedicated mic Java framework |
☢️ Radiation rate | ||
| Fairphone 6 | Lenovo K900 | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.49W/kg (head), 1.39W/kg (body) | feature not registered |