Nokia Lumia 635 (RM-974) vs Microsoft Lumia 640 (LTE)
Side by side comparison between Nokia Lumia 635 vs Microsoft Lumia 640 phones, differences, pros, cons and full specifications. What's the better?
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What's the better phone? Microsoft Lumia 640 (LTE)
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!
2 Advantages 
18 Advantages | 26 Common items in both devices |
| 1.2GHz 32bit Quad-core |
| Until 128GB microSD, microSDXC |
| TFT IPS LCD |
| 16 million |
| Only digital zoom |
| Autofocus |
| 1/4" inches |
| +19 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 | ||
| Nokia Lumia 635 (RM-974) | Microsoft Lumia 640 (LTE) | |
| Model | Lumia 635 (RM-974) | Lumia 640 (LTE) |
| Other model names | Nokia Lumia 635 Global RM-974 | AT&T Microsoft Lumia 640 4G RM-1072, Lumia 640 RM-1073 |
| Country or region available |  (Global, International) | feature not registered |
| Brand | Nokia | Microsoft |
| Release date | 5/1/2014 | 4/1/2015 |
| Depth | 9.2 millimeters (0.36 inches) | 8.8 millimeters (0.35 inches) |
| Size (width x height) | 66.7 x 129.5 millimeters (2.63 x 5.1 in) | 72.2 x 141.3 millimeters (2.84 x 5.56 in) |
| Weight | 134 grams (4.69 ounces) | 145 grams (5.08 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Nokia Lumia 635 (RM-974) | Microsoft Lumia 640 (LTE) | |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 4.5" inches | 5" inches |
| Screen-to-body ratio | ~64.6% (screen-to-body ratio) | ~67.6% (screen-to-body ratio) |
| Display resolution | 480x854 pixels | 720x1280 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 218 PPI | 294 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 3 | Gorilla Glass 3 |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Nokia Lumia 635 (RM-974) | Microsoft Lumia 640 (LTE) | |
| System version | Windows Phone 8.1 | Windows Phone 8.1 |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Nokia Lumia 635 (RM-974) | Microsoft Lumia 640 (LTE) | |
| Chipset | 32bit: Qualcomm Snapdragon 400 | 32bit: Qualcomm Snapdragon 400 MSM8926 (28nm) |
| CPU | Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A7 (Quad-core) | Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A7 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 305 | Qualcomm Adreno 305 400Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Nokia Lumia 635 (RM-974) | Microsoft Lumia 640 (LTE) | |
| RAM memory | 512MB | 1GB LPDDR2 |
| Internal storage | 8GB | 8GB (3GB available) |
| External storage | Until 128GB microSD, microSDXC (dedicated slot) | Until 128GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Nokia Lumia 635 (RM-974) | Microsoft Lumia 640 (LTE) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) micro-SIM (3FF) | 1 slot (Single-SIM) micro-SIM (3FF) |
| Maximum Download / Upload | 100/50 Mbps | 150/50 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 Cat3 800/1800/2600 (Bands 3,7,20) | LTE Cat4 800/900/1800/2100/2600 (Bands 1/3/7/8/20) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE |
| Secondary 2G network | Not supported | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | Not supported |
📷 Camera | ||
| Nokia Lumia 635 (RM-974) | Microsoft Lumia 640 (LTE) | |
| Back camera (main camera) | 5 megapixels | 8 megapixels |
| Main camera resolution | 2592x1944 pixels | 3264x2448 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | Not supported | LED flash |
| Focal aperture | f/2.4 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/4" inches | 1/4" inches |
| Pixel size | feature not registered | feature not registered |
| Autofocus | Autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | feature not registered | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection | Face detection |
| BSI sensor | Not supported | Supported |
| HDR | Not supported | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Nokia Lumia 635 (RM-974) | Microsoft Lumia 640 (LTE) | |
| Front camera (secondary) | Not supported | 1 megapixels |
| Front camera resolution | Not supported | 1280x720 pixels |
| Video recording (secondary) | Not supported | HD (1280x720) |
| Front flash | Not supported | Not supported |
| Focal aperture | feature not registered | feature not registered |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | feature not registered |
| Pixel size | feature not registered | feature not registered |
🔉 Sound and multimedia | ||
| Nokia Lumia 635 (RM-974) | Microsoft Lumia 640 (LTE) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, WMV | MP4, H.264, H.263, WMV |
| Audio formats | MP3, WAV, WMA, eAAC+ | MP3, WAV, WMA, eAAC+ |
🔌 Connectivity | ||
| Nokia Lumia 635 (RM-974) | Microsoft Lumia 640 (LTE) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 4.0 + A2DP | 4.0 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | Supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Nokia Lumia 635 (RM-974) | Microsoft Lumia 640 (LTE) | |
| Sensors | Accelerometer Proximity sensor | Accelerometer Ambient light sensor Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Nokia Lumia 635 (RM-974) | Microsoft Lumia 640 (LTE) | |
| Battery type | Li-Ion: lithium-ion (Removable) BL-5H | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 1830 mAh | 2500 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 14 hours | 20 hours |
| Standby | 600 hours (25 days) | 840 hours (35 days) |
➕ Other features | ||
| Nokia Lumia 635 (RM-974) | Microsoft Lumia 640 (LTE) | |
| Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder |
| Messaging | SMS (Swype), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Not 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: Orange, Yellow, White, Black, Green • Nokia ClearBlack display • Dolby headphone sound enhancement • Internet Explorer 11 • 7GB free SkyDrive storage • Facebook, LinkedIn, Twitter, WhatsApp • WiFi hotspot up to 8 devices | • Colors: Black • Lumia Denim UI • Microsoft ClearBlack display • OneDrive 30GB • Beidou GPS • WiFi hotspot |
☢️ Radiation rate | ||
| Nokia Lumia 635 (RM-974) | Microsoft Lumia 640 (LTE) | |
| 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 |