Alcatel OT-991 (Single-sim) vs Samsung Galaxy 551 (GT-i5510M)
Side by side comparison between Alcatel OT-991 vs Samsung Galaxy 551 phones, differences, pros, cons and full specifications. What's the better?
,
4"
TFT
TFT
320x480
3.1
MP
MP
0.3mp
256MB
RAM
RAM
Single-core
1500
mAh
mAh
(Removable)
vs
3.2"
TFT
TFT
240x400
3.1
MP
MP
512MB
RAM
RAM
Single-core
1200
mAh
mAh
(Removable)
What's the better phone? Alcatel OT-991 (Single-sim)
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!
10 Advantages 
7 Advantages | 20 Common items in both devices |
| Until 32GB microSD, microSDHC |
| TFT LCD |
| (back) 3.1MP |
| Only digital zoom |
| Android 2.3.6 Gingerbread |
| 7.2 Mbps |
| Capacitive |
| +13 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 | ||
| Alcatel OT-991 (Single-sim) | Galaxy 551 (GT-i5510M) | |
| Model | OT-991 (Single-sim) | Galaxy 551 (GT-i5510M) |
| Other model names | Alcatel One Touch 991, Alcatel 991 | Samsung Galaxy i5510M, Samsung Callisto |
| Country or region available | feature not registered |   (Latin America), Brazil |
| Brand | Alcatel | Samsung |
| Release date | 6/1/2012 | 11/1/2010 |
| Depth | 10.8 millimeters (0.43 inches) | 15.2 millimeters (0.6 inches) |
| Size (width x height) | 68 x 122 millimeters (2.68 x 4.8 in) | 55 x 111 millimeters (2.17 x 4.37 in) |
| Weight | 131 grams (4.59 ounces) | 117 grams (4.1 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Alcatel OT-991 (Single-sim) | Galaxy 551 (GT-i5510M) | |
| Display type | TFT LCD | TFT LCD |
| Screen size | 4" inches | 3.2" inches |
| Screen-to-body ratio | ~57.4% (screen-to-body ratio) | ~47.7% (screen-to-body ratio) |
| Display resolution | 320x480 pixels | 240x400 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 144 PPI | 146 PPI |
| Colors | 260 thousand | 16 million |
| Scratch-resistant glass | Not supported | Not supported |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Alcatel OT-991 (Single-sim) | Galaxy 551 (GT-i5510M) | |
| System version | Android 2.3.6 Gingerbread | Android 2.2 Froyo |
| Firmware update | feature not registered | Android 2.3.6 Gingerbread |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Alcatel OT-991 (Single-sim) | Galaxy 551 (GT-i5510M) | |
| Chipset | 32bit: MediaTek MT6573 | 32bit: Qualcomm Snapdragon S1 MSM7227 (65nm) |
| CPU | Single-core, 1 processor: 1x 800MHz ARM11 (Single-core) | Single-core, 1 processor: 1x 600MHz ARM1136EJ-S (Single-core) |
| GPU graphical controller | PowerVR SGX531 | Qualcomm Adreno 200 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Alcatel OT-991 (Single-sim) | Galaxy 551 (GT-i5510M) | |
| RAM memory | 256MB | 512MB |
| Internal storage | 512MB (150MB available) | 512MB (173MB available) |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Alcatel OT-991 (Single-sim) | Galaxy 551 (GT-i5510M) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 7.2 Mbps | 7.2 Mbps |
| Network technology | 2G | 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 | Not supported | UMTS 850/2100 |
| Primary 4G network | Not supported | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA | CSD, GPRS, EDGE, UMTS, HSDPA, HSUPA |
| 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 | ||
| Alcatel OT-991 (Single-sim) | Galaxy 551 (GT-i5510M) | |
| Back camera (main camera) | 3.1 megapixels | 3.1 megapixels |
| Main camera resolution | 2048x1536 pixels | 2048x1536 pixels |
| Video recording (primary) | VGA (720x480) 30 fps | QVGA (320x240) 15 fps |
| Flash | LED flash | 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 |
| Autofocus | Not supported | Autofocus |
| Touch focus | feature not registered | Not supported |
| Image stabilization | feature not registered | Not supported |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | feature not registered | Not supported |
| BSI sensor | feature not registered | Not supported |
| HDR | feature not registered | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Alcatel OT-991 (Single-sim) | Galaxy 551 (GT-i5510M) | |
| Front camera (secondary) | 0.3 megapixels | Not supported |
| Front camera resolution | 640x480 pixels | Not supported |
| Video recording (secondary) | Not supported | Not supported |
| 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 | ||
| Alcatel OT-991 (Single-sim) | Galaxy 551 (GT-i5510M) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | feature not registered | Not supported |
| Radio | FM (RDS) | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264 | 3GP, 3G2, MJPG, MP4, WMV, H.263 |
| Audio formats | MP3, WAV, WMA, AAC+ | MP3, WAV, eAAC+ |
🔌 Connectivity | ||
| Alcatel OT-991 (Single-sim) | Galaxy 551 (GT-i5510M) | |
| 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 | 3.0 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | feature not registered | Supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | feature not registered | Not supported |
🧭 Sensors | ||
| Alcatel OT-991 (Single-sim) | Galaxy 551 (GT-i5510M) | |
| Sensors | Accelerometer Compass Proximity sensor | Accelerometer Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Alcatel OT-991 (Single-sim) | Galaxy 551 (GT-i5510M) | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 1500 mAh | 1200 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 10 hours | 5 hours |
| Standby | 400 hours (16.7 days) | 370 hours (15.4 days) |
➕ Other features | ||
| Alcatel OT-991 (Single-sim) | Galaxy 551 (GT-i5510M) | |
| Call control | Voice recorder | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), 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, Flash player | HTML, XHTML, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Retractable QWERTY keyboard |
| Miscellaneous | • Colors: Black, White • HAC (M3/T3) • WiFi hotspot Java framework | • Colors: Black • 1GB microSD included • Samsung TouchWiz 3.0 Java framework |
☢️ Radiation rate | ||
| Alcatel OT-991 (Single-sim) | Galaxy 551 (GT-i5510M) | |
| 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 |