Sony Xperia Z Ultra (3G) vs Motorola Primus (XT621)
Side by side comparison between Sony Xperia Z Ultra vs Motorola Primus phones, differences, pros, cons and full specifications. What's the better?
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6.4"
TFT
TFT
1080x1920
8
MP
MP
2.1mp
2GB
RAM
RAM
Quad-core
3050
mAh
mAh
(Non removable)
vs
What's the better phone? Sony Xperia Z Ultra (3G)
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!
29 Advantages 
3 Advantages | 15 Common items in both devices |
| TFT LCD |
| 16 million |
| Only digital zoom |
| Capacitive |
| Multitouch |
| Accelerometer |
| Ambient light sensor |
| +8 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 | ||
| Sony Xperia Z Ultra (3G) | Motorola Primus (XT621) | |
| Model | Xperia Z Ultra (3G) | Primus (XT621) |
| Other model names | Sony Xperia Z Ultra C6802 3G XL39h HSPA+, Sony Togari | Nextel Motorola Primus XT621, Motorola XT621 Primus |
| Country or region available | feature not registered |   (Global, International), (Latin America) |
| Brand | Sony | Motorola |
| Release date | 7/30/2013 | 1/1/2013 |
| Depth | 6.5 millimeters (0.26 inches) | 12.3 millimeters (0.48 inches) |
| Size (width x height) | 92.2 x 179.4 millimeters (3.63 x 7.06 in) | 60 x 119 millimeters (2.36 x 4.69 in) |
| Weight | 212 grams (7.42 ounces) | 145 grams (5.08 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Waterproof (IP?) | Not supported |
📲 Display | ||
| Sony Xperia Z Ultra (3G) | Motorola Primus (XT621) | |
| Display type | TFT LCD | TFT LCD |
| Screen size | 6.4" inches | 4" inches |
| Screen-to-body ratio | ~68.3% (screen-to-body ratio) | ~63.8% (screen-to-body ratio) |
| Display resolution | 1080x1920 pixels | 480x800 pixels |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 344 PPI | 233 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Scratch-resistant glass | Gorilla Glass |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Sony Xperia Z Ultra (3G) | Motorola Primus (XT621) | |
| System version | Android 4.2.2 Jelly Bean | Android 2.3.6 Gingerbread |
| Firmware update | Android 4.4.4 KitKat | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Sony Xperia Z Ultra (3G) | Motorola Primus (XT621) | |
| Chipset | 32bit: Qualcomm MSM8274 | 32bit: Qualcomm Snapdragon S2 MSM8255T (45nm) |
| CPU | Quad-core, 1 processor: 4x 2.2GHz Krait 400 (Quad-core) | Single-core, 1 processor: 1x 1.2GHz Scorpion (Single-core) |
| GPU graphical controller | Qualcomm Adreno 330 | Qualcomm Adreno 205 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Sony Xperia Z Ultra (3G) | Motorola Primus (XT621) | |
| RAM memory | 2GB LPDDR3 | 1GB LPDDR2 |
| Internal storage | 16GB (11GB available) | 4GB (1GB available) |
| External storage | Until 64GB microSD, microSDXC (dedicated slot) | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Sony Xperia Z Ultra (3G) | Motorola Primus (XT621) | |
| Dual-SIM | Not supported | Not supported |
| SIM card | 1 slot (Single-SIM) micro-SIM (3FF) | 1 slot (Single-SIM) Standard mini-SIM (2FF) |
| Maximum Download / Upload | 42/5.76 Mbps | 7.2 Mbps |
| Network technology | 2G, 3G | 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 | UMTS 850/900/1700/1900/2100 | iDEN 800 UMTS 2100/1900/1700 |
| Primary 4G network | Not supported | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ | iDEN, 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 | ||
| Sony Xperia Z Ultra (3G) | Motorola Primus (XT621) | |
| Back camera (main camera) | 8 megapixels | 5 megapixels |
| Main camera resolution | 3264x2448 pixels | 2592x1944 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | HD (1280x720) 30 fps |
| Flash | Not supported | 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 | Not supported |
| Touch focus | Supported | Supported |
| Image stabilization | feature not registered | Not supported |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection | Face detection, Smile detection |
| BSI sensor | Supported | Not supported |
| HDR | HDR photo/video only main camera | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Sony Xperia Z Ultra (3G) | Motorola Primus (XT621) | |
| Front camera (secondary) | 2.1 megapixels | Not supported |
| Front camera resolution | 1920x1080 pixels | Not supported |
| Video recording (secondary) | Full HD (1920x1080) | 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 | ||
| Sony Xperia Z Ultra (3G) | Motorola Primus (XT621) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | 2 microphones or more | Not supported |
| Radio | FM (RDS) | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, DivX, XviD, H.264, H.263, WMV | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, WAV, AAC+ |
🔌 Connectivity | ||
| Sony Xperia Z Ultra (3G) | Motorola Primus (XT621) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Micro-B USB MHL | Not supported |
| Bluetooth | 4.0 + A2DP | 2.1 + A2DP |
| WiFi | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) WiFi Direct, hotspot | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Sony Xperia Z Ultra (3G) | Motorola Primus (XT621) | |
| Sensors | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor | Accelerometer Ambient light sensor Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Sony Xperia Z Ultra (3G) | Motorola Primus (XT621) | |
| Battery type | Li-Ion: lithium-ion (Non removable) | Li-Ion: lithium-ion (Removable) BP7X |
| Battery capacity | 3050 mAh | 1860 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 16 hours | feature not registered |
| Standby | 820 hours (34.2 days) | feature not registered |
➕ Other features | ||
| Sony Xperia Z Ultra (3G) | Motorola Primus (XT621) | |
| Call control | Voice dialing, Voice recorder | Voice recorder |
| 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, HTML5 | HTML, XHTML, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black, White, Purple • Sony Mobile BRAVIA Engine 3 • X-Reality triluminos display • USB On-The-Go 1.3 • Panorama photo • 3D Surround Sound Java framework | • Colors: Black • Push-to-Talk (PTT) • WiFi hotspot Java framework |
☢️ Radiation rate | ||
| Sony Xperia Z Ultra (3G) | Motorola Primus (XT621) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | 1.23W/kg (head), 0.42W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered | 0.73W/kg (head), 0.31W/kg (body) |