| Brand | Apple | 
|---|---|
| Model | iPhone 6S 16GB | 
| Model code(s) | A1633 (North America), A1688 (International), A1700 (China), A1691 (China) | 
| Release date | September 25, 2015 | 
| Dimensions | height: 138.3 mm (5.44 in), width: 67.1 mm (2.64 in), depth: 7.1 mm (0.28 in) | 
| Weight | 143 g (5.0 oz) | 
| Materials | anodized aluminum back, anodized aluminum sides | 
| Protection | no | 
| Colors | Gold, Rose Gold, Silver, Space Gray | 
| OS | iOS | 
| Release OS version | iOS 9.0 | 
| Latest OS version | iOS 14.5.1 | 
| In the box | iPhone 6S 16GB, Apple EarPods with Remote and Mic, Lightning to USB Cable, USB Power Adapter, Documentation | 
| Release price | $649 | 
| Size | 4.7 in (120 mm) (diagonal), 104 by 58 mm (4.1 by 2.3 in) | 
|---|---|
| Technology | IPS | 
| Resolution | 1334 x 750 | 
| Pixel density (ppi) | 326 | 
| Aspect ratio | 16:9 | 
| Max brightness | 500 | 
| Contrast ratio | 1400:1 | 
| Color space | 100% sRGB | 
| Protection | dual-ion exchange-strengthened glass | 
| SoC | Apple A9 | 
|---|---|
| Technology node | 16 nm (TSMC) or 14 nm (Samsung) | 
| CPU | 2x 1.85 GHz Twister cores | 
| GPU | PowerVR GT7600 (hexa-core) | 
| Neural engine | no | 
| Motion Coprocessor | M9 | 
| Storage capacity | 16GB | 
| Removable storage | no | 
| RAM capacity | 2GB | 
| RAM type | LPDDR4 | 
| Modem | Qualcomm MDM9635M | 
| Microphone(s) | 3x microphones | 
| Facial recognition system | no | 
| 3D scanner | no | 
| Fingerprint scanner | yes (Touch ID, second generation) | 
| Other sensors | proximity sensor, three-axis gyro, accelerometer, ambient light sensor, barometer | 
| Sensor(s) | 12 MP Wide (f/2.2) | 
|---|---|
| Optical stabilization | no | 
| Optical zoom | 1x | 
| Digital zoom | Photo: up to 5x, video: up to 3x | 
| Flash | dual-LED (True Tone flash) | 
| photo features | xxx, xxx, xxx | 
| video features | xxx, xxx, xxx | 
| Sensor(s) | 5 MP (f/2.2) | 
|---|---|
| Optical stabilization | no | 
| Optical zoom | 1x | 
| Digital zoom | no data | 
| Flash | screen flash | 
| photo features | xxx, xxx, xxx | 
| video features | xxx, xxx, xxx | 
| Compatible networks | GSM, EDGE, UMTS, HSPA+, DC-HSDPA, CDMA EV-DO Rev. A (some models), LTE Advanced | 
|---|---|
| SIM card | nano-SIM | 
| Wi-Fi | 802.11a/b/g/n/ac (Wi-Fi 5) | 
| Bluetooth | 4.2 | 
| Ultra Wideband | no | 
| NFC | yes | 
| Navigation | GPS, GLONASS | 
| Wire connector | 8-pin Lightning connector | 
| Battery | 3.82 V, 6.55 W*h (1,715 mA*h) | 
|---|---|
| Fast charging | no | 
| Wireless charging | no | 
| Speakers | mono | 
|---|---|
| Dolby Atmos | no | 
| 3.5 mm Jack | yes |