Asus Padfone 2 (16GB) vs Motorola Primus (XT621)
Side by side comparison between Asus Padfone 2 vs Motorola Primus phones, differences, pros, cons and full specifications. What's the better?
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4.7"
IPS+
IPS+
720x1280
13
MP
MP
1.2mp
2GB
RAM
RAM
Quad-core
2140
mAh
mAh
(Non removable)
vs
What's the better phone? Asus Padfone 2 (16GB)
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!
24 Advantages 
3 Advantages | 15 Common items in both devices |
| 16 million |
| LED flash |
| 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 | ||
| Asus Padfone 2 (16GB) | Motorola Primus (XT621) | |
| Model | Padfone 2 (16GB) | Primus (XT621) |
| Other model names | Asus Padfone 2, Asus Pad Fone 2, Asus A68 | Nextel Motorola Primus XT621, Motorola XT621 Primus |
| Country or region available | feature not registered |   (Global, International), (Latin America) |
| Brand | Asus | Motorola |
| Release date | 12/1/2012 | 1/1/2013 |
| Depth | 9 millimeters (0.35 inches) | 12.3 millimeters (0.48 inches) |
| Size (width x height) | 68.9 x 137.9 millimeters (2.71 x 5.43 in) | 60 x 119 millimeters (2.36 x 4.69 in) |
| Weight | 135 grams (4.73 ounces) | 145 grams (5.08 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Asus Padfone 2 (16GB) | Motorola Primus (XT621) | |
| Display type | TFT Super IPS+ | TFT LCD |
| Screen size | 4.7" inches | 4" inches |
| Screen-to-body ratio | ~64.1% (screen-to-body ratio) | ~63.8% (screen-to-body ratio) |
| Display resolution | 720x1280 pixels | 480x800 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 312 PPI | 233 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass | Gorilla Glass |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| Asus Padfone 2 (16GB) | Motorola Primus (XT621) | |
| System version | Android 4.0.4 Ice Cream Sandwich ICS | Android 2.3.6 Gingerbread |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Asus Padfone 2 (16GB) | Motorola Primus (XT621) | |
| Chipset | 32bit: Qualcomm Snapdragon S4 Pro (APQ8064) (28nm) | 32bit: Qualcomm Snapdragon S2 MSM8255T (45nm) |
| CPU | Quad-core, 1 processor: 4x 1.5GHz Krait 300 (Quad-core) | Single-core, 1 processor: 1x 1.2GHz Scorpion (Single-core) |
| GPU graphical controller | Qualcomm Adreno 320 (400MHz) | Qualcomm Adreno 205 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Asus Padfone 2 (16GB) | Motorola Primus (XT621) | |
| RAM memory | 2GB LPDDR2 | 1GB LPDDR2 |
| Internal storage | 16GB | 4GB (1GB available) |
| External storage | Not supported | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Asus Padfone 2 (16GB) | 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 | 100/50 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 | 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+, LTE | 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 | ||
| Asus Padfone 2 (16GB) | Motorola Primus (XT621) | |
| Back camera (main camera) | 13 megapixels | 5 megapixels |
| Main camera resolution | 4032x3224 pixels | 2592x1944 pixels |
| Video recording (primary) | Full HD (1920x1080) 30 fps | HD (1280x720) 30 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 | Autofocus | Not supported |
| Touch focus | feature not registered | 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 | feature not registered | Not supported |
| HDR | feature not registered | Not supported |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Asus Padfone 2 (16GB) | Motorola Primus (XT621) | |
| Front camera (secondary) | 1.2 megapixels | Not supported |
| Front camera resolution | 1280x960 pixels | Not supported |
| Video recording (secondary) | HD (1280x720) | 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 | ||
| Asus Padfone 2 (16GB) | Motorola Primus (XT621) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | feature not registered | Not supported |
| Radio | Not supported | FM |
| TV | Not supported | Not supported |
| Video formats | MP4, H.264, H.263 | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, eAAC+ | MP3, WAV, AAC+ |
🔌 Connectivity | ||
| Asus Padfone 2 (16GB) | Motorola Primus (XT621) | |
| USB | USB 2.0 proprietary connector | 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 [wifi4] (2.4GHz, 5GHz) | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | feature not registered | Not supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | feature not registered | Not supported |
🧭 Sensors | ||
| Asus Padfone 2 (16GB) | Motorola Primus (XT621) | |
| Sensors | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor | Accelerometer Ambient light sensor Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Asus Padfone 2 (16GB) | Motorola Primus (XT621) | |
| Battery type | LiPo: li-ion polymer (Non removable) | Li-Ion: lithium-ion (Removable) BP7X |
| Battery capacity | 2140 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 | 352 hours (14.7 days) | feature not registered |
➕ Other features | ||
| Asus Padfone 2 (16GB) | Motorola Primus (XT621) | |
| Call control | Voice dialing, Voice recorder | Voice recorder |
| Messaging | SMS (Swype), 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, Flash player | HTML, XHTML, Flash player |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black, White • ASUS SonicMaster sound • ASUS Waveshare UI • HDMI 1.4a • Wi-Fi dual-band • Wi-Fi hotspot • Optional: Padfone Station with 10.1 inches IPS display, 1280x800 pixels, 5000 mAh battery, 514g • Java framework | • Colors: Black • Push-to-Talk (PTT) • WiFi hotspot • Java framework |
☢️ Radiation rate | ||
| Asus Padfone 2 (16GB) | 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) |