NGM Droid Duo vs Acer Liquid S2 (S520)
Side by side comparison between NGM Droid Duo vs Acer Liquid S2 phones, differences, pros, cons and full specifications. What's the better?
,
vs
6"
IPS
IPS
1080x1920
13
MP
MP
2.1mp
2GB
RAM
RAM
Quad-core
3300
mAh
mAh
(Non removable)
What's the better phone? Acer Liquid S2 (S520)
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!
3 Advantages 
29 Advantages | 7 Common items in both devices |
| Only digital zoom |
| Hands-free calling |
| Vibrating alert |
| 3.5mm jack |
| FM (RDS) |
| A-GPS / A-GPS, GeoTagging, GLONASS |
| MicroUSB 2.0 |
| + 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 | ||
| NGM Droid Duo | Acer Liquid S2 (S520) | |
| Change model | ||
| Model | Droid Duo | Liquid S2 (S520) |
| Other model names | New Generation Mobile NGM Droid Duo Dual Sim | Acer Liquid S520, Acer S520, Acer Hamingway |
| Country or region available | feature not registered |  (Global, International) |
| Brand | NGM | Acer |
| Release date | 9/1/2011 | 12/1/2013 |
| Depth | 17 millimeters (0.67 inches) | 9 millimeters (0.35 inches) |
| Size (width x height) | 56 x 112 millimeters (2.2 x 4.41 in) | 86 x 166 millimeters (3.39 x 6.54 in) |
| Weight | 120 grams (4.2 ounces) | 231 grams (8.09 ounces) |
| Build, materials | feature not registered | feature not registered |
| Protection against water and others | Not supported | Not supported |
📲 Display | ||
| NGM Droid Duo | Acer Liquid S2 (S520) | |
| Display type | TFT LCD | TFT IPS LCD |
| Screen size | 3" inches | 6" inches |
| Screen-to-body ratio | ~40.8% (screen-to-body ratio) | ~69.5% (screen-to-body ratio) |
| Display resolution | 240x400 pixels | 1080x1920 pixels |
| Touchscreen | Resistive Single touch 1-point | Capacitive Multitouch |
| Pixel density (dot pitch) | 155 PPI | 367 PPI |
| Colors | 260 thousand | 16 million |
| Scratch-resistant glass | Not supported | Gorilla Glass 3 |
| Refresh rate | feature not registered | feature not registered |
| Display features | feature not registered | feature not registered |
🤖 Operating System | ||
| NGM Droid Duo | Acer Liquid S2 (S520) | |
| System version | Android 1.6 Donut | Android 4.2.2 Jelly Bean |
| Firmware update | feature not registered | feature not registered |
| User Interface | feature not registered | feature not registered |
⚙️ Processor | ||
| NGM Droid Duo | Acer Liquid S2 (S520) | |
| Chipset | 32bit | 32bit: Qualcomm Snapdragon 800 MSM8974 (28nm) |
| CPU | Single-core, 1 processor: Single-core Marvell (Single-core) | Quad-core, 1 processor: 4x 2.2GHz Krait 400 (Quad-core) |
| GPU graphical controller | feature not registered | Qualcomm Adreno 330 |
| Performance (benchmark) | feature not registered | feature not registered |
💽 Memory and storage | ||
| NGM Droid Duo | Acer Liquid S2 (S520) | |
| RAM memory | feature not registered | 2GB LPDDR3 |
| Internal storage | 10MB | 16GB (12GB available) |
| External storage | Until 16GB microSD, microSDHC (dedicated slot) | Until 64GB microSD, microSDXC (dedicated slot) |
📶 Mobile networks | ||
| NGM Droid Duo | Acer Liquid S2 (S520) | |
| Dual-SIM | Dual-SIM Active - Call active on both sim cards (dedicated slot) | Not supported |
| SIM card | 2 slots (Dual-SIM) Standard mini-SIM (2FF) | 1 slot (Single-SIM) micro-SIM (3FF) |
| Maximum Download / Upload | 0.236 Mbps | 100/50 Mbps |
| Network technology | 2G | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Tri-Band 900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | Not supported | UMTS 900/2100 |
| Primary 4G network | Not supported | LTE Cat3 800/1800/2600 (Bands 3,7,20) |
| Primary 5G network | Not supported | Not supported |
| Primary data network | GPRS, EDGE | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, LTE |
| Secondary 2G network | GSM 900/1800/1900 | Not supported |
| Secondary 3G network | Not supported | Not supported |
| Secondary 4G network | Not supported | Not supported |
| Secondary data network | GPRS, EDGE | Not supported |
📷 Camera | ||
| NGM Droid Duo | Acer Liquid S2 (S520) | |
| Back camera (main camera) | 5 megapixels | 13 megapixels |
| Main camera resolution | 2592x1944 pixels | 4160x3120 pixels |
| Video recording (primary) | VGA (640x480) | 4K UHD (3840x2160) 30 fps |
| Flash | Not supported | Quad-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 | Not supported | Supported |
| Image stabilization | feature not registered | EIS: Digital stabilization |
| Zoom | Only digital zoom | Only digital zoom |
| Face/smile detection | Not supported | 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 | ||
| NGM Droid Duo | Acer Liquid S2 (S520) | |
| Front camera (secondary) | Not supported | 2.1 megapixels |
| Front camera resolution | Not supported | 1920x1080 pixels |
| Video recording (secondary) | Not supported | Full HD (1920x1080) |
| 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 | ||
| NGM Droid Duo | Acer Liquid S2 (S520) | |
| Loudspeaker | Supported | Supported |
| Active noise cancellation | Not supported | Not supported |
| Radio | FM (RDS) | FM (RDS) |
| TV | Not supported | Not supported |
| Video formats | MP4, H.263 | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, AAC | MP3, WAV, eAAC+ |
🔌 Connectivity | ||
| NGM Droid Duo | Acer Liquid S2 (S520) | |
| USB | MicroUSB 2.0 | MicroUSB 2.0 |
| Audio output | 3.5mm jack | 3.5mm jack |
| TV output | Not supported | Not supported |
| Bluetooth | 2.0 + A2DP | 4.0 + A2DP |
| WiFi | 802.11 b/g [wifi3] (2.4GHz) | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Not supported | Supported |
| GPS | A-GPS | A-GPS, GeoTagging, GLONASS |
| NFC | Not supported | Supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| NGM Droid Duo | Acer Liquid S2 (S520) | |
| Sensors | Not supported | Accelerometer Ambient light sensor Compass Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| NGM Droid Duo | Acer Liquid S2 (S520) | |
| Battery type | Li-Ion: lithium-ion (Removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 1200 mAh | 3300 mAh |
| Charger, watts | Wired charging | Wired charging |
| Inductive / wireless charging | feature not registered | feature not registered |
| Talk time autonomy | 5 hours | feature not registered |
| Standby | 200 hours (8.3 days) | feature not registered |
➕ Other features | ||
| NGM Droid Duo | Acer Liquid S2 (S520) | |
| Call control | Voice recorder | Voice dialing, Voice recorder |
| Messaging | SMS, MMS, E-mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Not supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | WAP, HTML | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Black • 1GB microSD included | • Colors: Black, Red • Acer Float UI • DTS sound enhancement |
☢️ Radiation rate | ||
| NGM Droid Duo | Acer Liquid S2 (S520) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | feature not registered | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.402W/kg (body) | feature not registered |