Samsung Galaxy Express 2 (SM-G3815) vs Microsoft Lumia 640 (Dual-Sim 3G)
Side by side comparison between Samsung Galaxy Express 2 vs Microsoft Lumia 640 phones, differences, pros, cons and full specifications. What's the better?
,
4.5"
TFT
TFT
540x960
5
MP
MP
0.3mp
1.5GB
RAM
RAM
Dual-core
2100
mAh
mAh
(Removable)
vs
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!
9 Advantages 
17 Advantages | 22 Common items in both devices |
| 16 million |
| LED flash |
| Only digital zoom |
| Autofocus |
| Capacitive |
| Multitouch |
| Accelerometer |
| +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 | ||
| Galaxy Express 2 (SM-G3815) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| Change model | ||
| Model | Galaxy Express 2 (SM-G3815) | Lumia 640 (Dual-Sim 3G) |
| Other model names | Samsung Galaxy Express II G3815 | Microsoft Lumia 640 3G Dual Sim, Microsoft RM-1109 |
| Country or region available |  (Global, International) | feature not registered |
| Brand | Samsung | Microsoft |
| Release date | 10/1/2013 | 4/1/2015 |
| Depth | 9.8 millimeters (0.39 inches) | 8.8 millimeters (0.35 inches) |
| Size (width x height) | 65.7 x 132.4 millimeters (2.59 x 5.21 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 | ||
| Galaxy Express 2 (SM-G3815) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| Display type | TFT LCD | TFT IPS LCD |
| Screen size | 4.5" inches | 5" inches |
| Screen-to-body ratio | ~64.2% (screen-to-body ratio) | ~67.6% (screen-to-body ratio) |
| Display resolution | 540x960 pixels | 720x1280 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 245 PPI | 294 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 3 |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Galaxy Express 2 (SM-G3815) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| System version | Android 4.2.2 Jelly Bean | Windows Phone 8.1 |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Galaxy Express 2 (SM-G3815) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| Chipset | 32bit: Qualcomm Snapdragon 400 MSM8930AB | 32bit: Qualcomm Snapdragon 400 MSM8926 (28nm) |
| CPU | Dual-core, 1 processor: 2x 1.7GHz Krait 300 (Dual-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 | ||
| Galaxy Express 2 (SM-G3815) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| RAM memory | 1.5GB LPDDR2 | 1GB LPDDR2 |
| Internal storage | 8GB | 8GB (3GB available) |
| External storage | Until 64GB microSD, microSDXC (dedicated slot) | Until 128GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| Galaxy Express 2 (SM-G3815) | 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 | 100/50 Mbps | 42/5.76 Mbps |
| Network technology | 2G, 3G, 4G | 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 850/900/2100 | UMTS 850/900/1900/2100 |
| Primary 4G network | LTE 800/900/1800/2600 | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE | 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 | ||
| Galaxy Express 2 (SM-G3815) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| 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 | LED flash | LED flash |
| Focal aperture | f/2.6 (aperture) | f/2.2 (aperture) |
| Focal length | feature not registered | feature not registered |
| Sensor size | feature not registered | 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, Smile 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 | ||
| Galaxy Express 2 (SM-G3815) | 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 | ||
| Galaxy Express 2 (SM-G3815) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | 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, eAAC+, FLAC | MP3, WAV, WMA, eAAC+ |
🔌 Connectivity | ||
| Galaxy Express 2 (SM-G3815) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| USB | MicroUSB 2.0, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Micro-B USB MHL | Not supported |
| Bluetooth | 4.0 + A2DP | 4.0 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 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 | feature not registered | Not supported |
🧭 Sensors | ||
| Galaxy Express 2 (SM-G3815) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| Sensors | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor | Accelerometer Ambient light sensor Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy Express 2 (SM-G3815) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 2100 mAh | 2500 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 11 hours | 20 hours |
| Standby | 480 hours (20 days) | 840 hours (35 days) |
➕ Other features | ||
| Galaxy Express 2 (SM-G3815) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| 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 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Blue, White • Samsung TouchWiz UI Java framework | • Colors: Black • Lumia Denim UI • Microsoft ClearBlack display • OneDrive 30GB • Beidou GPS • WiFi hotspot |
☢️ Radiation rate | ||
| Galaxy Express 2 (SM-G3815) | Microsoft Lumia 640 (Dual-Sim 3G) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.38W/kg (head), 0.7W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.38W/kg (head), 0.36W/kg (body) | feature not registered |