Nokia Lumia 1520 (4G RM-937) vs Nokia Lumia 635 (RM-975)
Side by side comparison between Nokia Lumia 1520 vs Nokia Lumia 635 phones, differences, pros, cons and full specifications. What's the better?
,
6"
IPS
IPS
1080x1920
20.1
MP
MP
1.2mp
2GB
RAM
RAM
Quad-core
3400
mAh
mAh
(Non removable)
vs
What's the better phone? Nokia Lumia 1520 (4G RM-937)
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!
21 Advantages 
3 Advantages | 22 Common items in both devices |
| TFT IPS LCD |
| 16 million |
| Only digital zoom |
| Autofocus |
| f/2.4 (aperture) |
| Windows Phone 8.1 |
| 4G LTE |
| +15 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 1520 (4G RM-937) | Nokia Lumia 635 (RM-975) | |
| Model | Lumia 1520 (4G RM-937) | Lumia 635 (RM-975) |
| Other model names | Nokia Lumia 1520 RM-937, Nokia Beastie | Nokia Lumia 635 RM-975 AT&T, Nokia Moneypenny |
| Country or region available |  (Global, International) |  USA |
| Brand | Nokia | Nokia |
| Release date | 11/1/2013 | 5/1/2014 |
| Depth | 8.7 millimeters (0.34 inches) | 9.2 millimeters (0.36 inches) |
| Size (width x height) | 85.4 x 162.8 millimeters (3.36 x 6.41 in) | 66.7 x 129.5 millimeters (2.63 x 5.1 in) |
| Weight | 209 grams (7.32 ounces) | 134 grams (4.69 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Nokia Lumia 1520 (4G RM-937) | Nokia Lumia 635 (RM-975) | |
| Display type | TFT IPS LCD | TFT IPS LCD |
| Screen size | 6" inches | 4.5" inches |
| Screen-to-body ratio | ~71.4% (screen-to-body ratio) | ~64.6% (screen-to-body ratio) |
| Display resolution | 1080x1920 pixels | 480x854 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 367 PPI | 218 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass 2 | Gorilla Glass 3 |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Nokia Lumia 1520 (4G RM-937) | Nokia Lumia 635 (RM-975) | |
| System version | Windows Phone 8.0 GDR3 | Windows Phone 8.1 |
| Firmware update | Windows Phone 8.1 | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Nokia Lumia 1520 (4G RM-937) | Nokia Lumia 635 (RM-975) | |
| Chipset | 32bit: Qualcomm Snapdragon 800 MSM8974 (28nm) | 32bit: Qualcomm Snapdragon 400 |
| CPU | Quad-core, 1 processor: 4x 2.2GHz Krait 400 (Quad-core) | Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A7 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 330 | Qualcomm Adreno 305 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Nokia Lumia 1520 (4G RM-937) | Nokia Lumia 635 (RM-975) | |
| RAM memory | 2GB LPDDR3 | 1GB |
| Internal storage | 32GB (28GB available) | 8GB |
| External storage | Until 64GB microSD, microSDXC (dedicated slot) | Until 128GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Nokia Lumia 1520 (4G RM-937) | Nokia Lumia 635 (RM-975) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) | 1 slot (Single-SIM) micro-SIM (3FF) |
| Maximum Download / Upload | 150/50 Mbps | 100/50 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 850/900/1900/2100 |
| Primary 4G network | LTE Cat4 800/900/1800/2100/2600 (Bands 1,3,7,8,20) | LTE Cat3 800/1800/2600 (Bands 3,7,20) |
| 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 1520 (4G RM-937) | Nokia Lumia 635 (RM-975) | |
| Back camera (main camera) | 20.1 megapixels | 5 megapixels |
| Main camera resolution | 5376x3744 pixels | 2592x1944 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | HD (1280x720) 30 fps |
| Flash | Dual-LED flash | Not supported |
| Focal aperture | f/2.4 (aperture) | f/2.4 (aperture) |
| Focal length | 26mm (lens) | feature not registered |
| Sensor size | 1/2.5" inches | 1/4" inches |
| Pixel size | 1.12µm pixel | feature not registered |
| Autofocus | Autofocus | Autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection | Face detection |
| BSI sensor | Supported | Not supported |
| HDR | Not supported | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Nokia Lumia 1520 (4G RM-937) | Nokia Lumia 635 (RM-975) | |
| Front camera (secondary) | 1.2 megapixels | Not supported |
| Front camera resolution | 1280x960 pixels | Not supported |
| Video recording (secondary) | HD (1280x720) | Not supported |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.4 (aperture) | 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 1520 (4G RM-937) | Nokia Lumia 635 (RM-975) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM (RDS) | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, WMV, DivX, XviD | MP4, H.264, H.263, WMV |
| Audio formats | MP3, WAV, WMA, eAAC+ | MP3, WAV, WMA, eAAC+ |
🔌 Connectivity | ||
| Nokia Lumia 1520 (4G RM-937) | Nokia Lumia 635 (RM-975) | |
| 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 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | Supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Nokia Lumia 1520 (4G RM-937) | Nokia Lumia 635 (RM-975) | |
| Sensors | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor | Accelerometer Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Nokia Lumia 1520 (4G RM-937) | Nokia Lumia 635 (RM-975) | |
| Battery type | Li-Ion: lithium-ion (Non removable) BV-4BW | Li-Ion: lithium-ion (Removable) BL-5H |
| Battery capacity | 3400 mAh | 1830 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 25 hours (1 days) | 14 hours |
| Standby | 768 hours (32 days) | 460 hours (19.2 days) |
➕ Other features | ||
| Nokia Lumia 1520 (4G RM-937) | Nokia Lumia 635 (RM-975) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (Swype), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Not 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, Yellow, Red • Windows Phone 8 Black UI • Qi Wireless Charging • Dolby Digital • USB On-the-go 1.3 • 7GB SkyDrive • Nokia PureMotion HD+ ClearBlack display • Nokia PureView camera • Carl Zeiss optics • Dual capture camera • Panorama photo • WiFi hotspot | • 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 |
☢️ Radiation rate | ||
| Nokia Lumia 1520 (4G RM-937) | Nokia Lumia 635 (RM-975) | |
| 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 |