Samsung Galaxy S4 4G vs Samsung Galaxy S6
| Type | Touch | Touch |
| Dimensions | 136.60 x 69.80 x 7.90 mm | 143.40 x 70.50 x 6.80 mm |
| Weight | 131.00 g | 138.00 g |
| Display size | 5.00" | 5.10" |
| Display | Color / Super AMOLED 16M colors 1080 x 1920 px (5.00") 441 ppi | Color / Super AMOLED 16M colors 1440 x 2560 px (5.10") 576 ppi |
| Display protection |   | Corning Gorilla Glass Buy screen protector
|
| Additional display | | |
| Protection of the secondary display | | |
| Standard battery | Li-Ion 2600 mAhBuy powerbank
| Li-Ion 2550 mAhBuy powerbank
|
| Quick battery charging | | Quick Charge |
| Wireless battery charging | |  |
| Internal memory | 32 GB | 32 GB, 64 GB |
| RAM memory | 2 GB | 3 GB |
| Memory cards | microSD, microSDHC, microSDXC up to 64 GBBuy memory card | |
| Operating system | Android 4.3 Jelly Bean | Android 5.0 Lollipop |
| Interface | - | TouchWiz |
| Processor | Qualcomm Snapdragon 800 8974AB | Samsung Exynos 7420 |
| Processor clock | 2300 MHz | 2100 MHz |
| GPU | Adreno 330 @450 MHz | ARM Mali-T760 MP8 @772 MHz |
| Touchscreen | | |
| SAR (10g) | 0,285 W/kg |  |
| DualSIM | | |
| SIM cards standard | | SingleSIM(nanoSIM) |
| Announced | | 1Q 2015 |
| Other names | GT-I9508V | SM-G920F |
| GSM frequencies | 850 900 1800 1900 | 850 900 1800 1900 |
| UMTS | 850 900 1900 2100 | 850 900 1900 2100 |
| LTE standard | FDD LTE: 2600, 1800 TDD LTE: 2600, 2300, 1900 | |
| CDMA | | |
| Standard TD-SCDMA | 1900 2000 | |
| UMA | | |
CAMERAS - BACK
| First camera | | |
| Photo sensor model | | Sony IMX240 |
| Photo matrix | 13 Mpx | 16 Mpx |
| Resolution | 4128x3096 px | 5312x2988 px |
| Optical zoom | | |
| Flash | LED | LED |
| Dual-colour LED flash | | |
| Video resolution | 1920x1080 px | 3840x2160 px |
| Video formats | MPEG4, H.263, H.264 | H.263, H.264, MPEG4 - 30 fps |
| Additional | AF | AF, OIS |
CAMERAS - FRONT
| First camera | | |
| Photo sensor model | Samsung S5K6B2 | Samsung S5K4E6 |
| Photo matrix | 2 Mpx | 5 Mpx |
| Resolution | 1936x1036 px | 2592x1944 px |
| Optical zoom | | |
| Flash | | |
| Dual-colour LED flash | | |
| Video formats | MPEG4, H.263, H.264 | H.263, H.264, MPEG4 - 30 fps |
| Additional | - | FF |
SENSORS
| Accelerometer | | |
| Proximity | | |
| Light | | |
| Magnetometer | | |
| Gyroscope | | |
| Barometer | | |
| Altimeter | | |
| Gravity | | |
| Hall-effect | | |
| Iris scanner | | |
| Fingerprint scanner | | |
| Thermometer | | |
| Hygrometer | | |
Data transfer
| xHTML | | |
| WAP | | v2.0 |
| HSCSD | | |
| HSDPA | 42.00 Mbit/s | 42.20 Mbit/s |
| HSUPA | 5.76 Mbit/s | 5.76 Mbit/s |
| HSPA | | |
| HSPA+ | | |
| LTE DL | | - |
| LTE UP | | 51.00 Mbit/s |
| WIMAX+ | | |
| GPRS | | |
| EDGE | | |
| Bluetooth | v4.0 | v4.1 |
| A2DP Profile | | |
| HDMI | | |
| WiFi | v802.11 a/b/g/n/ac | v802.11 a/b/g/n/ac |
| WiFi frequencies | 2,4 GHz; 5 GHz | 2,4 GHz; 5 GHz |
| WiFi Direct | | |
| WiFi Display | | |
| DLNA | | |
| Miracast | | |
| WiFi hotspot | | |
| IrDA | | |
| USB | 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 | XT9 | XT9 |
| Swype | | |
| e-mail client | POP3, IMAP4, SMTP | POP3, IMAP4, SMTP |
| Hardware QWERTY keyboard | | |
| RSS Reader | | |
Multimedia
| Radio | | |
| MP3 | | |
| Stereo speakers | | |
| Audio Jack | 3.5 mm | 3.5 mm |
| HD Voice | | |
| Sound formats | AAC, AAC+, AMR, WAV, eAAC+ | 3GA, AAC, AMR, AWB, FLAC, IMY, M4A, MID, MIDI, MXMF, OGA, OGG, OTA, RTTTL, RTX, WAV, WMA, XMF |
| Polyphony | | |
| Video ringtone | | |
| Ring composer | | |
| Games | | |
| Java | Dalvik | ART |
| 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 | | |