Samsung GT-S5660 Gio vs Samsung Galaxy Ace 2
| Type | Touch | Touch | Touch | Touch |
| Dimensions | 110.50 x 57.50 x 12.20 mm | 118.30 x 62.20 x 10.50 mm | 120.30 x 59.70 x 9.24 mm | 136.60 x 70.60 x 8.60 mm |
| Weight | 102.00 g | 122.00 g | 115.00 g | 133.00 g |
| Display size | 3.20" | 3.80" | 3.70" | 4.80" |
| Display | Color / TFT 16M colors 320 x 480 px (3.20") 180 ppi | Color / PLS TFT 16M colors 480 x 800 px (3.80") 246 ppi | Color / Super LCD 16M colors 480 x 800 px (3.70") 252 ppi | Color / Super AMOLED 16M colors 720 x 1280 px (4.80") 306 ppi |
| Display protection |   | | | |
| Additional display | | | | |
| Protection of the secondary display | | | | |
| Talk time (max.) | 2G: 640 min. (10.7 h) | 2G: 980 min. (16.3 h) 3G: 450 min. (7.5 h) |  | 2G: 1300 min. (21.7 h) 3G: 650 min. (10.8 h) |
| Stand-by (max.) | 2G: 610 h. (25.4 days) | 2G: 670 h. (27.9 days) 3G: 640 h. (26.7 days) | | 2G: 900 h. (37.5 days) 3G: 750 h. (31.3 days) |
| Standard battery | Li-Ion 1350 mAhBuy powerbank
| Li-Ion 1500 mAhBuy powerbank
| Li-Ion 1500 mAhBuy powerbank
| Li-Ion 2100 mAhBuy powerbank
|
| Quick battery charging | | | | |
| Wireless battery charging | | | | |
| Internal memory | 512 MB | 4 GB | 4 GB | 16 GB, 32 GB |
| End-user memory | 158 MB | | | |
| RAM memory | 384 MB | 768 MB | 512 MB | 1 GB |
| Memory cards |  microSD, microSDHC up to 32 GBBuy memory card | microSD, microSDHC up to 32 GBBuy memory card | microSD, microSDHC up to 32 GBBuy memory card | microSD, microSDHC, microSDXC up to 64 GBBuy memory card |
| Operating system | Android 2.2 Froyo | Android 2.3 Gingerbread | Android 4.0 Ice Cream Sandwich | Android 4.0 Ice Cream Sandwich |
| Interface | TouchWiz 3.0 | - | - | - |
| Processor | Qualcomm MSM7227 | ST-Ericsson NovaThor U8500 | Qualcomm MSM8255 | Samsung Exynos 4412 |
| Processor clock | 800 MHz | 800 MHz | 1000 MHz | 1400 MHz |
| GPU | Adreno 200 | ARM Mali-400 MP | Adreno 205 | ARM Mali-400 MP4 @440 MHz |
| Touchscreen | | | | |
| SAR (10g) | 0,79 W/kg | | | |
| DualSIM | | | | |
| SIM cards standard | | | | SingleSIM(microSIM) |
| Announced | | 2Q 2012 | 2Q 2012 | 2Q 2012 |
| Other names | Galaxy Gio | GT-i8160; GT-I8160l; GT-I8160p; Ace II | - | GT-i9300; GT-i9308; Galaxy S3 |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 900 2100 | 900 2100 | 850 900 1900 2100 | 850 900 1900 2100 |
| LTE standard | | | | |
| CDMA | | | | |
| Standard TD-SCDMA | | | | |
| UMA | | | | |
CAMERAS - BACK
| First camera | | | | |
| Photo sensor model | | | | Samsung S5K3H2 |
| Photo matrix | 3.2 Mpx | 5 Mpx | 5 Mpx | 8 Mpx |
| Resolution | 2048x1536 px | 2592x1944 px | 2592x1944 px | 3264x2448 px |
| Optical zoom | | | | |
| Digital zoom | 2x | | | |
| Flash | | LED | LED | LED |
| Dual-colour LED flash | | | | |
| Video resolution | 320x240 px | 1280x720 px | 1280x720 px | 1920x1080 px |
| Video formats | H.263, H.264, MPEG4 - 15 fps | H.263, H.264, MPEG4 | H.263, H.264 | H.263, H.264, MPEG4 - 30 fps |
| Additional | AF | - | AF, f/2.0 | AF |
CAMERAS - FRONT
| First camera | | | | |
| Photo matrix | nd | 0.3 Mpx | nd | 1.9 Mpx |
| Resolution | nd | 640x480 px | nd | |
| Optical zoom | nd | | nd | |
| Flash | nd | | nd | |
| Dual-colour LED flash | nd | | nd | |
| Video formats | nd | H.263, H.264, MPEG4 | nd | H.263, H.264, MPEG4 - 30 fps |
| Additional | nd | - | nd | FF |
SENSORS
| Accelerometer | | | | |
| Proximity | | | | |
| Light | | | | |
| Magnetometer | | | | |
| Gyroscope | | | | |
| Barometer | | | | |
| Altimeter | | | | |
| Gravity | | | | |
| Hall-effect | | | | |
| Iris scanner | | | | |
| Fingerprint scanner | | | | |
| Thermometer | | | | |
| Hygrometer | | | | |
Data transfer
| xHTML | | | | |
| WAP | v2.0 | v2.0 | v2.0 | v2.0 |
| HSCSD | | | | |
| HSDPA | 7.20 Mbit/s | 14.40 Mbit/s | | 21.00 Mbit/s |
| HSUPA | | 5.76 Mbit/s | | 5.76 Mbit/s |
| HSPA | | | | |
| HSPA+ | | | | |
| LTE DL | | | | |
| LTE UP | | | | |
| WIMAX+ | | | | |
| GPRS | class 10 | class 12 | | class 12 |
| EDGE | class 10 | class 12 | | class 12 |
| Bluetooth | v3.0 | v3.0 | v4.0 | v4.0 |
| A2DP Profile | | | | |
| HDMI | | | | |
| WiFi | v802.11 b/g/n | v802.11 b/g/n | v802.11 b/g/n | v802.11 a/b/g/n |
| WiFi frequencies | 2,4 GHz | 2,4 GHz | 2,4 GHz | 2,4 GHz |
| WiFi Direct | | | | |
| WiFi Display | | | | |
| DLNA | | | | |
| Miracast | | | | |
| WiFi hotspot | | | | |
| IrDA | | | | |
| USB | v2.0 | v2.0 | v2.0 | v2.0 |
| GPS | | | | |
| A-GPS | | | | |
| GLONASS | | | | |
| Beidou | | | | |
| NFC | | | | |
COMMUNICATION AND MESSAGING
| Call waiting | | | | |
| Conferency | | | | |
| Call forwarding | | | | |
| Push To Talk | | | | |
| Instant Messenger | | | | |
| SMS | | | | |
| EMS | | | | |
| MMS | | | | |
| Dictionary | T9 | T9 | XT9 | XT9 |
| Swype | | | | |
| e-mail client | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | | | |
| RSS Reader | | | | |
Multimedia
| Radio | z RDS | z RDS | | z RDS |
| MP3 | | | | |
| Stereo speakers | | | | |
| Audio Jack | 3.5 mm | 3.5 mm | 3.5 mm | 3.5 mm |
| HD Voice | | | | |
| Sound formats | AAC, AAC+, AMR, WMA, eAAC+ | AAC, AAC+, AMR, FLAC, OGG, WMA, eAAC+ | AAC, AAC+, AMR, OGG, WAV, WMA, eAAC+ | AAC, AAC+, AMR, FLAC, OGG, WAV, WMA, eAAC+ |
| Polyphony | | 72 voices | 72 voices | 64 voices |
| Video ringtone | | | | |
| Ring composer | | | | |
| Games | | | | |
| Java | Dalvik | Dalvik | Dalvik | Dalvik |
| Videophone | | | | |
| DVB-H television | | | | |
| TV-Out | | | | |
PIM AND ADDITIONAL FUNCTIONS
| Watch | | | | |
| Stopwatch | | | | |
| Alarm | | | | |
| Calculator | | | | |
| Currency converter | | | | |
| Organizer | | | | |
| Calendar | | | | |
| Flight mode | | | | |
| SyncML | | | | |
| Data and fax | | | | |
| Screensaver | | | | |
| Themes | | | | |
| Interchangeable covers | | | | |
| Voice dial | | | | |
| Speakerphone | | | | |
| Recorder | | | | |
| Vibrations | | | | |