Microsoft Lumia 640 (Dual-Sim LTE) vs Realme 8i (128GB/4GB)
Side by side comparison between Microsoft Lumia 640 vs Realme 8i phones, differences, pros, cons and full specifications. What's the better?
,
vs
6.6"
IPS
IPS
1080x2412
50
MP
MP
16mp
4GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
What's the better phone? Realme 8i (128GB/4GB)
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!
6 Advantages 
23 Advantages | 18 Common items in both devices |
| TFT IPS LCD |
| 16 million |
| LED flash |
| Only digital zoom |
| Autofocus / PDAF: phase detection autofocus |
| Full HD (1920x1080) |
| 4G LTE / 4G LTE-A |
| +11 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 | ||
| Microsoft Lumia 640 (Dual-Sim LTE) | Realme 8i (128GB/4GB) | |
| Model | Lumia 640 (Dual-Sim LTE) | Realme 8i (128GB/4GB) |
| Other model names | Microsoft Lumia 640 LTE Dual Chip RM-1077, Lumia 640 RM-1077 | Realme 8i RMX3151 (128GB+4GB RAM) |
| Country or region available | feature not registered |  (Global, International) |
| Brand | Microsoft | Realme |
| Release date | 4/1/2015 | 9/14/2021, Announced: 9/9/2021 |
| Depth | 8.8 millimeters (0.35 inches) | 8.5 millimeters (0.33 inches) |
| Size (width x height) | 72.2 x 141.3 millimeters (2.84 x 5.56 in) | 75.5 x 164.1 millimeters (2.97 x 6.46 in) |
| Weight | 145 grams (5.08 ounces) | 194 grams (6.79 ounces) |
| Build, materials | feature not registered | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Microsoft Lumia 640 (Dual-Sim LTE) | Realme 8i (128GB/4GB) | |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 5" inches | 6.6" inches |
| Screen-to-body ratio | ~67.6% (screen-to-body ratio) | ~84.6% (screen-to-body ratio) |
| Display resolution | 720x1280 pixels | 1080x2412 pixels (20:9) |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 294 PPI | 400 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Not supported |
| Refresh rate | feature not registered | 120Hz |
| Display features | feature not registered | 600nits[peak] |
🤖 Operating System | ||
| Microsoft Lumia 640 (Dual-Sim LTE) | Realme 8i (128GB/4GB) | |
| System version | Windows Phone 8.1 | Android 11 |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | Realme UI 2.0 |
⚙️ Processor | ||
| Microsoft Lumia 640 (Dual-Sim LTE) | Realme 8i (128GB/4GB) | |
| Chipset | 32bit: Qualcomm Snapdragon 400 MSM8926 (28nm) | 64bit: MediaTek Helio G96 (12nm) |
| CPU | Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A7 (Quad-core) | Octa-core, 2 processors: 2x 2.05GHz ARM Cortex-A76 (Dual-core) 6x 2GHz ARM Cortex-A55 (Hexa-core) |
| GPU graphical controller | Qualcomm Adreno 305 400Mhz | ARM Mali-G57 MC2 (850MHz) |
| Performance (benchmark) | feature not registered | AnTuTu: 350000 (v9) |
💽 Memory and storage | ||
| Microsoft Lumia 640 (Dual-Sim LTE) | Realme 8i (128GB/4GB) | |
| RAM memory | 1GB LPDDR2 | 4GB LPDDR4X |
| Internal storage | 8GB (3GB available) | 128GB (104GB available) UFS 2.1 |
| External storage | Until 128GB microSD, microSDXC (dedicated slot) | Until 1TB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Microsoft Lumia 640 (Dual-Sim LTE) | Realme 8i (128GB/4GB) | |
| 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 | 2 slots (Dual-SIM) micro-SIM (3FF) | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 150/50 Mbps | 400/150 Mbps |
| Network technology | 2G, 3G, 4G | 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 850/900/2100 |
| Primary 4G network | LTE Cat4 700/850/900/1700/1800/1900/2100/2300/2600 (Bands 1/2/3/4/5/7/8/12/17/20/28/32/38/40) | LTE Cat13 (1, 3, 5, 8) TD-LTE (38, 40, 41) VoLTE |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, 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 | Not supported | UMTS 850/900/2100 |
| Secondary 4G network | Not supported | LTE Cat13 (1, 3, 5, 8) TD-LTE (38, 40, 41) VoLTE |
| Secondary data network | GPRS, EDGE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
📷 Camera | ||
| Microsoft Lumia 640 (Dual-Sim LTE) | Realme 8i (128GB/4GB) | |
| Back camera (main camera) | 8 megapixels | (triple camera) 50 megapixels 2MP macro f/2.4 2MP depth f/2.4 |
| Main camera resolution | 3264x2448 pixels | 8160x6120 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/2.2 (aperture) | f/1.8 (aperture) |
| Focal length | feature not registered | 26mm lens |
| Sensor size | 1/4" inches | 1/2.76" inches |
| Pixel size | feature not registered | 0.64µm pixel |
| Autofocus | Autofocus | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | feature not registered | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face 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 | feature not registered |
📸 Front camera | ||
| Microsoft Lumia 640 (Dual-Sim LTE) | Realme 8i (128GB/4GB) | |
| Front camera (secondary) | 1 megapixels | 16 megapixels |
| Front camera resolution | 1280x720 pixels | 4608x3456 pixels |
| Video recording (secondary) | HD (1280x720) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | f/2.1 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | 1/3" inches |
| Pixel size | feature not registered | 1µm pixel |
🔉 Sound and multimedia | ||
| Microsoft Lumia 640 (Dual-Sim LTE) | Realme 8i (128GB/4GB) | |
| Loudspeaker | Supported | Mono sound (not stereo) |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, WMV | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+ | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Microsoft Lumia 640 (Dual-Sim LTE) | Realme 8i (128GB/4GB) | |
| USB | MicroUSB 2.0 | USB 2.0 Type-C, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | USB Type-C (reversible) |
| Bluetooth | 4.0 + A2DP | 5.1 + A2DP/LE |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Microsoft Lumia 640 (Dual-Sim LTE) | Realme 8i (128GB/4GB) | |
| Sensors | Accelerometer Ambient light sensor Compass Proximity sensor | Accelerometer Ambient light sensor Compass Face unlock Fingerprint sensor (side-mounted) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Microsoft Lumia 640 (Dual-Sim LTE) | Realme 8i (128GB/4GB) | |
| Battery type | Li-Ion: lithium-ion (Removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 2500 mAh | 5000 mAh |
| Charger, watts | Wired charging | 18W Wired fast charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | 20 hours | feature not registered |
| Standby | 840 hours (35 days) | feature not registered |
➕ Other features | ||
| Microsoft Lumia 640 (Dual-Sim LTE) | Realme 8i (128GB/4GB) | |
| Call control | Voice dialing, Voice recorder | 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 • Lumia Denim UI • Microsoft ClearBlack display • OneDrive 30GB • Beidou GPS • WiFi hotspot | • Colors: Space Black, Space Purple • Screen film protector • Case protector |
☢️ Radiation rate | ||
| Microsoft Lumia 640 (Dual-Sim LTE) | Realme 8i (128GB/4GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | feature not registered |