Motorola Primus (XT621) vs Positivo P28
Side by side comparison between Motorola Primus vs Positivo P28 phones, differences, pros, cons and full specifications. What's the better?
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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!
20 Advantages 
3 Advantages | 10 Common items in both devices |
| TFT LCD |
| LED flash |
| Only digital zoom |
| Li-Ion: lithium-ion (Removable) |
| Hands-free calling |
| 3.5mm jack |
| FM |
| +3 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) | Positivo P28 | |
| Change model | ||
| Model | Primus (XT621) | Positivo P28 |
| Other model names | Nextel Motorola Primus XT621, Motorola XT621 Primus | Positivo P28 Dual-Chip |
| Country or region available |   (Global, International), (Latin America) |  Brazil |
| Brand | Motorola | Positivo |
| Release date | 1/1/2013 | 2/29/2016 |
| Depth | 12.3 millimeters (0.48 inches) | 12 millimeters (0.47 inches) |
| Size (width x height) | 60 x 119 millimeters (2.36 x 4.69 in) | 56.5 x 128 millimeters (2.22 x 5.04 in) |
| Weight | 145 grams (5.08 ounces) | 90 grams (3.15 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Motorola Primus (XT621) | Positivo P28 | |
| Display type | TFT LCD | TFT LCD |
| Screen size | 4" inches | 2.8" inches |
| Screen-to-body ratio | ~63.8% (screen-to-body ratio) | ~33.6% (screen-to-body ratio) |
| Display resolution | 480x800 pixels | 240x320 pixels |
| Touchscreen | Capacitive Multitouch | Not supported |
| Pixel density (dot pitch) | 233 PPI | 143 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) | Positivo P28 | |
| 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 | ||
| Motorola Primus (XT621) | Positivo P28 | |
| Chipset | 32bit: Qualcomm Snapdragon S2 MSM8255T (45nm) | 32bit |
| CPU | Single-core, 1 processor: 1x 1.2GHz Scorpion (Single-core) | Single-core, 1 processor: 1x 260MHz |
| GPU graphical controller | Qualcomm Adreno 205 | feature not registered |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Motorola Primus (XT621) | Positivo P28 | |
| RAM memory | 1GB LPDDR2 | 32MB |
| Internal storage | 4GB (1GB available) | 24MB |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 8GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Motorola Primus (XT621) | Positivo P28 | |
| Dual-SIM | Not supported | Dual-SIM Standby - Call active on one sim card (dedicated slot) |
| SIM card | 1 slot (Single-SIM) Standard mini-SIM (2FF) | 2 slots (Dual-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 7.2 Mbps | 0.048 Mbps |
| Network technology | 2G, 3G | 2G |
| 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 | iDEN 800 UMTS 2100/1900/1700 | Not supported |
| Primary 4G network | Not supported | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | iDEN, GPRS, EDGE, UMTS, HSDPA, HSUPA | GPRS |
| 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 |
📷 Camera | ||
| Motorola Primus (XT621) | Positivo P28 | |
| Back camera (main camera) | 5 megapixels | 0.3 megapixels |
| Main camera resolution | 2592x1944 pixels | 640x480 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | QVGA (320x240) 15 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 | Not supported | Not supported |
| Touch focus | Supported | Not supported |
| Image stabilization | Not supported | Not supported |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Not supported |
| BSI sensor | Not supported | Not supported |
| HDR | Not supported | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Motorola Primus (XT621) | Positivo P28 | |
| Front camera (secondary) | Not supported | Not supported |
| Front camera resolution | Not supported | 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 | ||
| Motorola Primus (XT621) | Positivo P28 | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | Not supported |
| Radio | FM | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.263 |
| Audio formats | MP3, WAV, AAC+ | MP3, WAV |
🔌 Connectivity | ||
| Motorola Primus (XT621) | Positivo P28 | |
| USB | MicroUSB 2.0 | Mini-USB 2.0 (Mini-B) |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 2.1 + A2DP | 2.1 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | Not supported |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging | Not supported |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Motorola Primus (XT621) | Positivo P28 | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Not supported |
| Vibrating alert | Supported | Not supported |
🔋 Battery | ||
| Motorola Primus (XT621) | Positivo P28 | |
| Battery type | Li-Ion: lithium-ion (Removable) BP7X | Li-Ion: lithium-ion (Removable) |
| Battery capacity | 1860 mAh | 850 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Motorola Primus (XT621) | Positivo P28 | |
| Call control | Voice recorder | Voice dialing, Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS, MMS, E-mail |
| Hands-free calling | Supported | Supported |
| Video calling | Not supported | Not supported |
| Ringtones | Polyphonic and customized | Polyphonic |
| Web browser | HTML, XHTML, Flash player | HTML, XHTML |
| 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 |
☢️ Radiation rate | ||
| Motorola Primus (XT621) | Positivo P28 | |
| 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 |