Samsung Galaxy Core 2 Duos (SM-G355H/DS) vs Samsung Galaxy S2 Skyrocket (SGH-i727)
Side by side comparison between Samsung Galaxy Core 2 vs Samsung Galaxy S2 Skyrocket phones, differences, pros, cons and full specifications. What's the better?
,
4.5"
TFT
TFT
480x800
5
MP
MP
0.3mp
768MB
RAM
RAM
Quad-core
2000
mAh
mAh
(Removable)
vs
4.5"
AMOLED
AMOLED
480x800
8
MP
MP
2mp
1GB
RAM
RAM
Dual-core
1850
mAh
mAh
(Removable)
What's the better phone? Samsung Galaxy S2 Skyrocket (SGH-i727)
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!
8 Advantages 
16 Advantages | 21 Common items in both devices |
| 480x800 pixels |
| 207 PPI |
| 4.5" |
| LED flash |
| Only digital zoom |
| Autofocus |
| (front) VGA (640x480) |
| +14 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 Core 2 Duos (SM-G355H/DS) | Galaxy S2 Skyrocket (SGH-i727) | |
| Model | Galaxy Core 2 Duos (SM-G355H/DS) | Galaxy S2 Skyrocket (SGH-i727) |
| Other model names | Samsung Galaxy Core II SM-G355H/Dual-Sim | AT&T Samsung Galaxy S II Skyrocket i727 |
| Country or region available | feature not registered |  USA |
| Brand | Samsung | Samsung |
| Release date | 5/20/2014 | 11/6/2011 |
| Depth | 9.8 millimeters (0.39 inches) | 9.4 millimeters (0.37 inches) |
| Size (width x height) | 68 x 130.3 millimeters (2.68 x 5.13 in) | 68.8 x 129.8 millimeters (2.71 x 5.11 in) |
| Weight | 138 grams (4.83 ounces) | 131 grams (4.59 ounces) |
| Build, materials | feature not registered | Plastic body, glass front |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Galaxy Core 2 Duos (SM-G355H/DS) | Galaxy S2 Skyrocket (SGH-i727) | |
| Display type | TFT LCD | Super AMOLED Plus |
| Screen size | 4.5" inches | 4.5" inches |
| Screen-to-body ratio | ~65.1% (screen-to-body ratio) | ~64.5% (screen-to-body ratio) |
| Display resolution | 480x800 pixels | 480x800 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 207 PPI | 207 PPI |
| Colors | 260 thousand | 16 million |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | feature not registered | 60Hz |
| Display features | feature not registered | Not supported |
🤖 Operating System | ||
| Galaxy Core 2 Duos (SM-G355H/DS) | Galaxy S2 Skyrocket (SGH-i727) | |
| System version | Android 4.4.2 KitKat | Android 2.3.5 Gingerbread |
| Firmware update | feature not registered | Android 4.1.2 Jelly Bean |
| User Interface | feature not registered | TouchWiz 4.0 UI |
⚙️ Processor | ||
| Galaxy Core 2 Duos (SM-G355H/DS) | Galaxy S2 Skyrocket (SGH-i727) | |
| Chipset | 32bit | 32bit: Qualcomm Snapdragon S3 (MSM8260) (45nm) |
| CPU | Quad-core, 1 processor: 4x 1.2GHz | Dual-core, 1 processor: 2x 1.5GHz Scorpion (Dual-core) |
| GPU graphical controller | feature not registered | Qualcomm Adreno 220 (266MHz) |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Galaxy Core 2 Duos (SM-G355H/DS) | Galaxy S2 Skyrocket (SGH-i727) | |
| RAM memory | 768MB LPDDR2 | 1GB LPDDR2 |
| Internal storage | 4GB (2GB available) | 16GB (13GB available) |
| External storage | Until 64GB microSD, microSDXC (dedicated slot) | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Galaxy Core 2 Duos (SM-G355H/DS) | Galaxy S2 Skyrocket (SGH-i727) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card (dedicated slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) micro-SIM (3FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 21/5.76 Mbps | 75/25 Mbps |
| Network technology | 2G, 3G | 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 900/1900/2100 | UMTS 850/1900/2100 |
| Primary 4G network | Not supported | LTE Cat2 (Bands 4, 17) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE |
| Secondary 2G network | GSM 850/900/1800/1900 | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | Not supported |
📷 Camera | ||
| Galaxy Core 2 Duos (SM-G355H/DS) | Galaxy S2 Skyrocket (SGH-i727) | |
| Back camera (main camera) | 5 megapixels | 8 megapixels |
| Main camera resolution | 2592x1944 pixels | 3264x2448 pixels |
| Video recording (primary) | VGA (720x480) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| 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 |
| 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 | Face detection |
| BSI sensor | Not supported | Not supported |
| HDR | HDR photo only main camera | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Galaxy Core 2 Duos (SM-G355H/DS) | Galaxy S2 Skyrocket (SGH-i727) | |
| Front camera (secondary) | 0.3 megapixels | 2 megapixels |
| Front camera resolution | 640x480 pixels | 1600x1200 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 Core 2 Duos (SM-G355H/DS) | Galaxy S2 Skyrocket (SGH-i727) | |
| Loudspeaker | Supported | Mono sound (not stereo) |
| Active noise cancellation | Not supported | 2 microphones |
| Radio | FM (RDS) | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263, WMV | MP4, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, eAAC+, FLAC | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy Core 2 Duos (SM-G355H/DS) | Galaxy S2 Skyrocket (SGH-i727) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0, USB OTG On-The-Go |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Micro-B USB MHL |
| Bluetooth | 4.0 + A2DP | 3.0 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) WiFi Direct, hotspot | 802.11 a/b/g/n [wifi4] (2.4GHz, 5GHz) WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy Core 2 Duos (SM-G355H/DS) | Galaxy S2 Skyrocket (SGH-i727) | |
| Sensors | Accelerometer Ambient light sensor Compass Proximity sensor | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy Core 2 Duos (SM-G355H/DS) | Galaxy S2 Skyrocket (SGH-i727) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 2000 mAh | 1850 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | Not supported |
| Talk time autonomy | feature not registered | 7 hours |
| Standby | feature not registered | 256 hours (10.7 days) |
➕ Other features | ||
| Galaxy Core 2 Duos (SM-G355H/DS) | Galaxy S2 Skyrocket (SGH-i727) | |
| Call control | Voice dialing, Voice recorder | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (Swype), 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, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black, White • Samsung TouchWiz UI • Nature UX 2.0 • Java framework | • Colors: Black, White • HAC M3/T3 • Java framework |
☢️ Radiation rate | ||
| Galaxy Core 2 Duos (SM-G355H/DS) | Galaxy S2 Skyrocket (SGH-i727) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.293W/kg (head), 0.98W/kg (body) | 0.3W/kg (head), 0.85W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | 0.425W/kg (head), 0.451W/kg (body) | 0.197W/kg (head) |