Microsoft Lumia 435 (RM-1070) vs Microsoft Lumia 640 (Dual-Sim 3G)
Side by side comparison between Microsoft Lumia 435 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 (Dual-Sim 3G)
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 
21 Advantages | 24 Common items in both devices |
| 1GB / 1GB LPDDR2 |
| Until 128GB microSD, microSDXC |
| 16 million |
| Only digital zoom |
| Windows Phone 8.1 |
| 3G+ HSPA+ |
| 42 Mbps |
| +17 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 435 (RM-1070) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| Model | Lumia 435 (RM-1070) | Lumia 640 (Dual-Sim 3G) |
| Other model names | Microsoft Lumia 435 Single-sim RM-1070, RM-1071 | Microsoft Lumia 640 3G Dual Sim, Microsoft RM-1109 |
| Country or region available |  (Global, International) | feature not registered |
| Brand | Microsoft | Microsoft |
| Release date | 3/1/2015 | 4/1/2015 |
| Depth | 11.7 millimeters (0.46 inches) | 8.8 millimeters (0.35 inches) |
| Size (width x height) | 64.7 x 118.1 millimeters (2.55 x 4.65 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 | ||
| Microsoft Lumia 435 (RM-1070) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| Display type | TFT LCD | TFT IPS LCD |
| Screen size | 4" inches | 5" inches |
| Screen-to-body ratio | ~59.6% (screen-to-body ratio) | ~67.6% (screen-to-body ratio) |
| Display resolution | 480x800 pixels (5:3) | 720x1280 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 233 PPI | 294 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 3 |
| Refresh rate | 60Hz | feature not registered |
| Display features | Not supported | feature not registered |
🤖 Operating System | ||
| Microsoft Lumia 435 (RM-1070) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| System version | Windows Phone 8.1 | Windows Phone 8.1 |
| Firmware update | feature not registered | feature not registered |
| User Interface | Denim UI | feature not registered |
⚙️ Processor | ||
| Microsoft Lumia 435 (RM-1070) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| Chipset | 32bit: Qualcomm Snapdragon 200 (MSM8210) (28nm) | 32bit: Qualcomm Snapdragon 400 MSM8926 (28nm) |
| CPU | Dual-core, 1 processor: 2x 1.2GHz ARM Cortex-A7 (Dual-core) | Quad-core, 1 processor: 4x 1.2GHz ARM Cortex-A7 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 302 (400MHz) | Qualcomm Adreno 305 400Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Microsoft Lumia 435 (RM-1070) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| RAM memory | 1GB | 1GB LPDDR2 |
| Internal storage | 8GB (4.5GB available) | 8GB (3GB available) |
| External storage | Until 128GB microSD, microSDXC (dedicated slot) | Until 128GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Microsoft Lumia 435 (RM-1070) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 1 slot (Single-SIM) micro-SIM (3FF) | 2 slots (Dual-SIM) micro-SIM (3FF) |
| Maximum Download / Upload | 42/5.76 Mbps | 42/5.76 Mbps |
| Network technology | 2G, 3G | 2G, 3G |
| 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 RM-1070: 850/1900/2100 - RM-1071: 900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | Not supported | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ |
| Secondary 2G network | Not supported | GSM 850/900/1800/1900 |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | Not supported | GPRS, EDGE |
📷 Camera | ||
| Microsoft Lumia 435 (RM-1070) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| Back camera (main camera) | 2 megapixels | 8 megapixels |
| Main camera resolution | 1600x1200 pixels | 3264x2448 pixels |
| Video recording (primary) | WVGA (800x480) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | Not supported | LED flash |
| Focal aperture | f/2.8 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | 1/5" inches | 1/4" inches |
| Pixel size | feature not registered | feature not registered |
| Autofocus | Not supported | Autofocus |
| Touch focus | Not supported | Supported |
| Image stabilization | EIS: Digital stabilization | 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 | ||
| Microsoft Lumia 435 (RM-1070) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| Front camera (secondary) | 0.3 megapixels | 1 megapixels |
| Front camera resolution | 640x480 pixels | 1280x720 pixels |
| Video recording (secondary) | VGA (640x480) | 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 | ||
| Microsoft Lumia 435 (RM-1070) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| Loudspeaker | Mono sound (not stereo) | Supported |
| Active noise cancellation | 1 microphone | 2 microphones or more |
| Radio | FM (RDS) | 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, AAC+ | MP3, WAV, WMA, eAAC+ |
🔌 Connectivity | ||
| Microsoft Lumia 435 (RM-1070) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| 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) WiFi hotspot | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | Supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging, GLONASS |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Microsoft Lumia 435 (RM-1070) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Accelerometer Ambient light sensor Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Microsoft Lumia 435 (RM-1070) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| Battery type | Li-Ion: lithium-ion (Removable) BV-5J | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 1560 mAh | 2500 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | Not supported | feature not registered |
| Talk time autonomy | 11.7 hours | 20 hours |
| Standby | 504 hours (21 days) | 840 hours (35 days) |
➕ Other features | ||
| Microsoft Lumia 435 (RM-1070) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| Call control | Voice dialing, Voice recorder | 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: Black, White, Green, Orange • Internet Explorer 11 • OneDrive 30GB | • Colors: Black • Lumia Denim UI • Microsoft ClearBlack display • OneDrive 30GB • Beidou GPS • WiFi hotspot |
☢️ Radiation rate | ||
| Microsoft Lumia 435 (RM-1070) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.81W/kg (head), 0.53W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.58W/kg (head), 0.54W/kg (body) | feature not registered |