Alcatel OT-991 (Single-sim) vs Vodafone Chat 655
Side by side comparison between Alcatel OT-991 vs Vodafone Chat 655 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
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!
15 Advantages 
2 Advantages | 13 Common items in both devices |
| TFT LCD |
| 260 thousand |
| LED flash |
| Only digital zoom |
| 3G HSDPA |
| Li-Ion: lithium-ion (Removable) |
| Hands-free calling |
| +6 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) | Vodafone Chat 655 | |
| Model | OT-991 (Single-sim) | Chat 655 |
| Other model names | Alcatel One Touch 991, Alcatel 991 | Alcatel Chat OT-655, Vodafone Chat 655W 3G |
| Country or region available | feature not registered | feature not registered |
| Brand | Alcatel | Vodafone |
| Release date | 6/1/2012 | 2/1/2013 |
| Depth | 10.8 millimeters (0.43 inches) | 11 millimeters (0.43 inches) |
| Size (width x height) | 68 x 122 millimeters (2.68 x 4.8 in) | 61.1 x 112 millimeters (2.41 x 4.41 in) |
| Weight | 131 grams (4.59 ounces) | 104 grams (3.64 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Alcatel OT-991 (Single-sim) | Vodafone Chat 655 | |
| Display type | TFT LCD | TFT LCD |
| Screen size | 4" inches | 2.4" inches |
| Screen-to-body ratio | ~57.4% (screen-to-body ratio) | ~26.1% (screen-to-body ratio) |
| Display resolution | 320x480 pixels | 320x240 pixels |
| Touchscreen | Capacitive Multitouch | Not supported |
| Pixel density (dot pitch) | 144 PPI | 167 PPI |
| Colors | 260 thousand | 260 thousand |
| 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) | Vodafone Chat 655 | |
| System version | Android 2.3.6 Gingerbread | Proprietary OS |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Alcatel OT-991 (Single-sim) | Vodafone Chat 655 | |
| Chipset | 32bit: MediaTek MT6573 | 32bit |
| CPU | Single-core, 1 processor: 1x 800MHz ARM11 (Single-core) | Single-core, 1 processor: Single-core |
| GPU graphical controller | PowerVR SGX531 | feature not registered |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Alcatel OT-991 (Single-sim) | Vodafone Chat 655 | |
| RAM memory | 256MB | feature not registered |
| Internal storage | 512MB (150MB available) | 64MB |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 16GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Alcatel OT-991 (Single-sim) | Vodafone Chat 655 | |
| 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 | 3.6 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 2100 |
| Primary 4G network | Not supported | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA | GPRS, EDGE, UMTS, HSDPA |
| 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) | Vodafone Chat 655 | |
| Back camera (main camera) | 3.1 megapixels | 2 megapixels |
| Main camera resolution | 2048x1536 pixels | 1600x1200 pixels |
| Video recording (primary) | VGA (720x480) 30 fps | QVGA (320x240) |
| 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 | Not supported | Not supported |
| Touch focus | feature not registered | feature not registered |
| Image stabilization | feature not registered | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | feature not registered | feature not registered |
| BSI sensor | feature not registered | feature not registered |
| HDR | feature not registered | feature not registered |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Alcatel OT-991 (Single-sim) | Vodafone Chat 655 | |
| 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) | Vodafone Chat 655 | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | feature not registered | feature not registered |
| Radio | FM (RDS) | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264 | MP4, H.263 |
| Audio formats | MP3, WAV, WMA, AAC+ | MP3, WAV, WMA, AAC+ |
🔌 Connectivity | ||
| Alcatel OT-991 (Single-sim) | Vodafone Chat 655 | |
| 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 | 2.1 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 b/g [wifi3] (2.4GHz) |
| DLNA | feature not registered | feature not registered |
| GPS | A-GPS, GeoTagging | A-GPS |
| NFC | Not supported | Not supported |
| Infrared port | feature not registered | feature not registered |
🧭 Sensors | ||
| Alcatel OT-991 (Single-sim) | Vodafone Chat 655 | |
| Sensors | Accelerometer Compass Proximity sensor | Not supported |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Alcatel OT-991 (Single-sim) | Vodafone Chat 655 | |
| Battery type | Li-Ion: lithium-ion (Removable) | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 1500 mAh | feature not registered |
| 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) | 509 hours (21.2 days) |
➕ Other features | ||
| Alcatel OT-991 (Single-sim) | Vodafone Chat 655 | |
| Call control | Voice recorder | Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-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 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Fixed QWERTY keyboard |
| Miscellaneous | • Colors: Black, White • HAC (M3/T3) • WiFi hotspot Java framework | • Colors: Gray • Facebook, Twitter Java framework |
☢️ Radiation rate | ||
| Alcatel OT-991 (Single-sim) | Vodafone Chat 655 | |
| 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 |