Motorola Primus (XT621) vs Samsung Galaxy Attain 4G (SCH-R920)
Side by side comparison between Motorola Primus vs Samsung Galaxy Attain 4G phones, differences, pros, cons and full specifications. What's the better?
,
vs
3.5"
TFT
TFT
320x480
3.1
MP
MP
1.3mp
512MB
RAM
RAM
Single-core
1650
mAh
mAh
(Removable)
What's the better phone? Motorola Primus (XT621)
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!
11 Advantages 
10 Advantages | 18 Common items in both devices |
| Until 32GB microSD, microSDHC |
| TFT LCD |
| LED flash |
| Only digital zoom |
| Android 2.3.6 Gingerbread |
| Capacitive |
| Multitouch |
| +11 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 | ||
| Motorola Primus (XT621) | Galaxy Attain 4G (SCH-R920) | |
| Change model | ||
| Model | Primus (XT621) | Galaxy Attain 4G (SCH-R920) |
| Other model names | Nextel Motorola Primus XT621, Motorola XT621 Primus | MetroPCS Samsung Galaxy Attain 4G R920, Samsung SCH-R920 |
| Country or region available |   (Global, International), (Latin America) |  USA |
| Brand | Motorola | Samsung |
| Release date | 1/1/2013 | 2/6/2012 |
| Depth | 12.3 millimeters (0.48 inches) | 11.7 millimeters (0.46 inches) |
| Size (width x height) | 60 x 119 millimeters (2.36 x 4.69 in) | 60.5 x 116 millimeters (2.38 x 4.57 in) |
| Weight | 145 grams (5.08 ounces) | 119 grams (4.17 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Motorola Primus (XT621) | Galaxy Attain 4G (SCH-R920) | |
| Display type | TFT LCD | TFT LCD |
| Screen size | 4" inches | 3.5" inches |
| Screen-to-body ratio | ~63.8% (screen-to-body ratio) | ~52% (screen-to-body ratio) |
| Display resolution | 480x800 pixels | 320x480 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 233 PPI | 165 PPI |
| Colors | 16 million | 260 thousand |
| Scratch-resistant glass | Gorilla Glass | Not supported |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Motorola Primus (XT621) | Galaxy Attain 4G (SCH-R920) | |
| System version | Android 2.3.6 Gingerbread | Android 2.3.6 Gingerbread |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Motorola Primus (XT621) | Galaxy Attain 4G (SCH-R920) | |
| Chipset | 32bit: Qualcomm Snapdragon S2 MSM8255T (45nm) | 32bit: Qualcomm Snapdragon MSM8655T |
| CPU | Single-core, 1 processor: 1x 1.2GHz Scorpion (Single-core) | Single-core, 1 processor: 1x 1GHz Scorpion (Single-core) |
| GPU graphical controller | Qualcomm Adreno 205 | Qualcomm Adreno 205 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Motorola Primus (XT621) | Galaxy Attain 4G (SCH-R920) | |
| RAM memory | 1GB LPDDR2 | 512MB LPDDR2 |
| Internal storage | 4GB (1GB available) | 2GB (1.39GB available) |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Motorola Primus (XT621) | Galaxy Attain 4G (SCH-R920) | |
| 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 | 100/50 Mbps |
| Network technology | 2G, 3G | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Not supported |
| Primary 2G network | GSM 850/900/1800/1900 | CDMA 800/1700/1900 |
| Primary 3G network | iDEN 800 UMTS 2100/1900/1700 | CDMA2000 1xEV-DO |
| Primary 4G network | Not supported | LTE 1700/2100 |
| Primary 5G network | Not supported | Not supported |
| Primary data network | iDEN, GPRS, EDGE, UMTS, HSDPA, HSUPA | CDMA2000 EV-DO Rev A, LTE |
| 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 | ||
| Motorola Primus (XT621) | Galaxy Attain 4G (SCH-R920) | |
| Back camera (main camera) | 5 megapixels | 3.1 megapixels |
| Main camera resolution | 2592x1944 pixels | 2048x1536 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | VGA (720x480) |
| 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 | Autofocus |
| Touch focus | Supported | feature not registered |
| Image stabilization | Not supported | feature not registered |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | feature not registered |
| BSI sensor | Not supported | feature not registered |
| HDR | Not supported | feature not registered |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Motorola Primus (XT621) | Galaxy Attain 4G (SCH-R920) | |
| Front camera (secondary) | Not supported | 1.3 megapixels |
| Front camera resolution | Not supported | 1280x1024 pixels |
| 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 | ||
| Motorola Primus (XT621) | Galaxy Attain 4G (SCH-R920) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | feature not registered |
| Radio | FM | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.264, H.263, WMV |
| Audio formats | MP3, WAV, AAC+ | MP3, WAV, WMA, eAAC+ |
🔌 Connectivity | ||
| Motorola Primus (XT621) | Galaxy Attain 4G (SCH-R920) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 2.1 + A2DP | 3.0 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | Not supported | feature not registered |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | feature not registered |
🧭 Sensors | ||
| Motorola Primus (XT621) | Galaxy Attain 4G (SCH-R920) | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Accelerometer Ambient light sensor Compass Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Motorola Primus (XT621) | Galaxy Attain 4G (SCH-R920) | |
| Battery type | Li-Ion: lithium-ion (Removable) BP7X | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 1860 mAh | 1650 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | feature not registered | 3.5 hours |
| Standby | feature not registered | 200 hours (8.3 days) |
➕ Other features | ||
| Motorola Primus (XT621) | Galaxy Attain 4G (SCH-R920) | |
| Call control | Voice recorder | Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (Swype), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Not supported | 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 | Not supported |
| Miscellaneous | • Colors: Black • Push-to-Talk (PTT) • WiFi hotspot Java framework | • Colors: Black • 2GB microSD included • Samsung TouchWiz 4 UI • HAC M4/T4 • WiFi hotspot Java framework |
☢️ Radiation rate | ||
| Motorola Primus (XT621) | Galaxy Attain 4G (SCH-R920) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 1.23W/kg (head), 0.42W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.73W/kg (head), 0.31W/kg (body) | feature not registered |