Samsung Galaxy Express 2 (SM-G3815) vs CAT B15Q
Side by side comparison between Samsung Galaxy Express 2 vs CAT B15Q phones, differences, pros, cons and full specifications. What's the better?
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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? Samsung Galaxy Express 2 (SM-G3815)
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!
18 Advantages 
5 Advantages | 24 Common items in both devices |
| TFT LCD |
| 16 million |
| (back) 5MP |
| LED flash |
| Only digital zoom |
| Autofocus |
| (front) 0.3MP |
| +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 | ||
| Galaxy Express 2 (SM-G3815) | CAT B15Q | |
| Change model | ||
| Model | Galaxy Express 2 (SM-G3815) | CAT B15Q |
| Other model names | Samsung Galaxy Express II G3815 | Caterpillar B15Q Dual-sim, CAT B15 Q |
| Country or region available |  (Global, International) | (Global, International) |
| Brand | Samsung | CAT |
| Release date | 10/1/2013 | 6/1/2014 |
| Depth | 9.8 millimeters (0.39 inches) | 15 millimeters (0.59 inches) |
| Size (width x height) | 65.7 x 132.4 millimeters (2.59 x 5.21 in) | 69.5 x 125 millimeters (2.74 x 4.92 in) |
| Weight | 134 grams (4.69 ounces) | 170 grams (5.95 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | IP67 certified: dust proof and waterproof over 1 meter and 30min. MIL-STD-810G military certified: salt, dust, humidity, rain, vibration, solar radiation, transport and thermal shock resistant. |
📲 Display | ||
| Galaxy Express 2 (SM-G3815) | CAT B15Q | |
| Display type | TFT LCD | TFT LCD |
| Screen size | 4.5" inches | 4" inches |
| Screen-to-body ratio | ~64.2% (screen-to-body ratio) | ~52.4% (screen-to-body ratio) |
| Display resolution | 540x960 pixels | 480x800 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch 2-points |
| Pixel density (dot pitch) | 245 PPI | 233 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Galaxy Express 2 (SM-G3815) | CAT B15Q | |
| System version | Android 4.2.2 Jelly Bean | Android 4.4.2 KitKat |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Galaxy Express 2 (SM-G3815) | CAT B15Q | |
| Chipset | 32bit: Qualcomm Snapdragon 400 MSM8930AB | 32bit: MediaTek MT6582M |
| CPU | Dual-core, 1 processor: 2x 1.7GHz Krait 300 (Dual-core) | Quad-core, 1 processor: 4x 1.3GHz ARM Cortex-A7 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 305 | ARM Mali-400 MP2 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Galaxy Express 2 (SM-G3815) | CAT B15Q | |
| RAM memory | 1.5GB LPDDR2 | 1GB LPDDR2 |
| Internal storage | 8GB | 4GB (2GB available) |
| External storage | Until 64GB microSD, microSDXC (dedicated slot) | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Galaxy Express 2 (SM-G3815) | CAT B15Q | |
| 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) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 100/50 Mbps | 21/5.76 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 | Latin America model: UMTS 850/1700/1900/2100 Europe/Africa model: UMTS 850/900/2100 |
| 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) | CAT B15Q | |
| Back camera (main camera) | 5 megapixels | 5 megapixels |
| Main camera resolution | 2592x1944 pixels | 2592x1944 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | HD (1280x720) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | f/2.6 (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 |
| Autofocus | Autofocus | 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, Smile detection | Smile detection |
| BSI sensor | Not supported | Not supported |
| HDR | Not supported | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Galaxy Express 2 (SM-G3815) | CAT B15Q | |
| Front camera (secondary) | 0.3 megapixels | 0.3 megapixels |
| Front camera resolution | 640x480 pixels | 640x480 pixels |
| Video recording (secondary) | VGA (640x480) | VGA (640x480) |
| 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) | CAT B15Q | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | Not supported |
| Radio | FM (RDS) | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, WMV | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, eAAC+, FLAC | MP3, WAV, eAAC+ |
🔌 Connectivity | ||
| Galaxy Express 2 (SM-G3815) | CAT B15Q | |
| 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 | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | feature not registered | Not supported |
🧭 Sensors | ||
| Galaxy Express 2 (SM-G3815) | CAT B15Q | |
| Sensors | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor | Accelerometer Ambient light sensor Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy Express 2 (SM-G3815) | CAT B15Q | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 2100 mAh | 2000 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 11 hours | 16 hours |
| Standby | 480 hours (20 days) | 456 hours (19 days) |
➕ Other features | ||
| Galaxy Express 2 (SM-G3815) | CAT B15Q | |
| 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 • WiFi hotspot • Drop to concrete resistance from up to 1.8m Java framework |
☢️ Radiation rate | ||
| Galaxy Express 2 (SM-G3815) | CAT B15Q | |
| 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 |