Motorola Primus (XT621) vs Acer Liquid S1 Duo (S510)
Side by side comparison between Motorola Primus vs Acer Liquid S1 phones, differences, pros, cons and full specifications. What's the better?
,
vs
5.7"
TFT
TFT
720x1280
8
MP
MP
2mp
1GB
RAM
RAM
Quad-core
2400
mAh
mAh
(Removable)
What's the better phone? Acer Liquid S1 Duo (S510)
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!
2 Advantages 
23 Advantages | 19 Common items in both devices |
| 1GB LPDDR2 |
| Until 32GB microSD, microSDHC |
| TFT LCD |
| 16 million |
| LED flash |
| Only digital zoom |
| Capacitive |
| +12 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) | Acer Liquid S1 Duo (S510) | |
| Change model | ||
| Model | Primus (XT621) | Liquid S1 Duo (S510) |
| Other model names | Nextel Motorola Primus XT621, Motorola XT621 Primus | Acer Liquid S1 S510, Acer Liquid S1 Dual-Sim HM.HDTAA.001 |
| Country or region available |   (Global, International), (Latin America) |   (Global, International), Canada, USA |
| Brand | Motorola | Acer |
| Release date | 1/1/2013 | 8/1/2013 |
| Depth | 12.3 millimeters (0.48 inches) | 9.6 millimeters (0.38 inches) |
| Size (width x height) | 60 x 119 millimeters (2.36 x 4.69 in) | 83 x 163 millimeters (3.27 x 6.42 in) |
| Weight | 145 grams (5.08 ounces) | 195 grams (6.83 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| Motorola Primus (XT621) | Acer Liquid S1 Duo (S510) | |
| Display type | TFT LCD | TFT LCD |
| Screen size | 4" inches | 5.7" inches |
| Screen-to-body ratio | ~63.8% (screen-to-body ratio) | ~66.2% (screen-to-body ratio) |
| Display resolution | 480x800 pixels | 720x1280 pixels |
| Touchscreen | Capacitive Multitouch | Capacitive Multitouch |
| Pixel density (dot pitch) | 233 PPI | 258 PPI |
| Colors | 16 million | 16 million |
| 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) | Acer Liquid S1 Duo (S510) | |
| System version | Android 2.3.6 Gingerbread | Android 4.2.2 Jelly Bean |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| Motorola Primus (XT621) | Acer Liquid S1 Duo (S510) | |
| Chipset | 32bit: Qualcomm Snapdragon S2 MSM8255T (45nm) | 32bit: MediaTek MT6589T Turbo (28nm) |
| CPU | Single-core, 1 processor: 1x 1.2GHz Scorpion (Single-core) | Quad-core, 1 processor: 4x 1.5GHz ARM Cortex-A7 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 205 | PowerVR SXG544 MP2 357Mhz |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| Motorola Primus (XT621) | Acer Liquid S1 Duo (S510) | |
| RAM memory | 1GB LPDDR2 | 1GB LPDDR2 |
| Internal storage | 4GB (1GB available) | 8GB (5.59GB available) |
| External storage | Until 32GB microSD, microSDHC (dedicated slot) | Until 32GB microSD, microSDHC (dedicated slot) |
📶 Mobile networks | ||
| Motorola Primus (XT621) | Acer Liquid S1 Duo (S510) | |
| 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) micro-SIM (3FF) |
| Maximum Download / Upload | 7.2 Mbps | 42/5.76 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 | iDEN 800 UMTS 2100/1900/1700 | UMTS 900/2100 |
| Primary 4G network | Not supported | Not supported |
| Primary 5G network | Not supported | Not supported |
| Primary data network | iDEN, GPRS, EDGE, UMTS, HSDPA, HSUPA | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+ |
| 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, EDGE |
📷 Camera | ||
| Motorola Primus (XT621) | Acer Liquid S1 Duo (S510) | |
| Back camera (main camera) | 5 megapixels | 8 megapixels |
| Main camera resolution | 2592x1944 pixels | 3264x2448 pixels |
| Video recording (primary) | HD (1280x720) 30 fps | Full HD (1920x1080) 30 fps |
| Flash | LED flash | LED flash |
| Focal aperture | feature not registered | f/2.0 (aperture) |
| 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 | Supported |
| Image stabilization | Not supported | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Not supported | Supported |
| HDR | Not supported | HDR photo only main camera |
| Camera extras | feature not registered | feature not registered |
📸 Front camera | ||
| Motorola Primus (XT621) | Acer Liquid S1 Duo (S510) | |
| Front camera (secondary) | Not supported | 2 megapixels |
| Front camera resolution | Not supported | 1600x1200 pixels |
| Video recording (secondary) | Not supported | HD (1280x720) |
| 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) | Acer Liquid S1 Duo (S510) | |
| 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.264, H.263 |
| Audio formats | MP3, WAV, AAC+ | MP3, WAV, WMA, AAC |
🔌 Connectivity | ||
| Motorola Primus (XT621) | Acer Liquid S1 Duo (S510) | |
| 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 | 4.0 + A2DP |
| WiFi | 802.11 b/g/n [wifi4] (2.4GHz) | 802.11 b/g/n [wifi4] (2.4GHz) |
| DLNA | Not supported | Not supported |
| GPS | A-GPS, GeoTagging | A-GPS, GeoTagging |
| NFC | Not supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Motorola Primus (XT621) | Acer Liquid S1 Duo (S510) | |
| Sensors | Accelerometer Ambient light sensor Proximity sensor | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Motorola Primus (XT621) | Acer Liquid S1 Duo (S510) | |
| Battery type | Li-Ion: lithium-ion (Removable) BP7X | LiPo: li-ion polymer (Removable) BAT-E10 |
| Battery capacity | 1860 mAh | 2400 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | feature not registered | 11 hours |
| Standby | feature not registered | 450 hours (18.8 days) |
➕ Other features | ||
| Motorola Primus (XT621) | Acer Liquid S1 Duo (S510) | |
| Call control | Voice recorder | Voice dialing, 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, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black • Push-to-Talk (PTT) • WiFi hotspot Java framework | • Colors: White, Black • DTS sound • Acer Float UI • WiFi hotspot |
☢️ Radiation rate | ||
| Motorola Primus (XT621) | Acer Liquid S1 Duo (S510) | |
| 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) | 0.44W/kg (head), 0.41W/kg (body) |