iPhone: Which iOS 4 software features does my iPhone support?

Summary

iOS 4 is a free software update offering new features for iPhone 3G, iPhone 3GS, and iPhone 4.

Features and capabilities vary between models, with some features available only with certain models and iOS versions.

iPhone

Select your iPhone model below to learn which iOS 4 features your device supports:

iOS 4.3 is the latest version of iOS for your device, and supports the following features:

iOS 4 Feature	iPhone 3GS	iPhone 4 (GSM)
Home screen Folders	√	√
Unified Inbox and threading for Mail	√	√
Personal Hotspot¹	√	√
Spotlight search	√	√
Custom text tones²	√	√
Multitasking	√	√
Game Center	√	√
Bluetooth keyboard support	√	√
Home screen wallpaper	√	√
Data protection	√	√
Over-the-air Notes sync	√	√
AirPrint	√	√
AirPlay	√	√
VoiceOver	√	√
Home Sharing	√	√
FaceTime³		√
VGA/HDMI out⁴		√
HDR (High Dynamic Range) photos		√
Notes: iPhone 3GS supports Personal Hotspot over USB and Bluetooth. Personal Hotspot is not available in all areas; fees may apply. See this article for availability. iPhone 4 offers 17 additional text alert tones. FaceTime requires a Wi-Fi connection. FaceTime may not be available in all countries or regions. Requires the Dock Connector to VGA Adapter or Apple Digital AV Adapter, sold separately.

iOS 4.2 is the latest version of iOS for your device, and supports the following features:

iOS 4 Feature	iPhone 3G (iOS 4.2.1)	iPhone 4 (CDMA) (iOS 4.2.6)
Home screen Folders	√	√
Unified Inbox and threading for Mail	√	√
Internet tethering¹	√
Personal Hotspot¹		√
Spotlight search²	√	√
Custom text tones³	√	√
Multitasking		√
Game Center		√
Bluetooth keyboard support		√
Home screen wallpaper		√
Data protection		√
Over-the-air Notes sync		√
AirPrint		√
AirPlay⁴		√
VoiceOver		√
FaceTime⁵		√
VGA/HDMI out⁶		√
HDR (High Dynamic Range) photos		√
Notes: Internet tethering is not available in all areas; fees may apply. See this article for availability. iPhone 3G does not support Spotlight search for SMS/MMS messages. iPhone 4 offers 17 additional text alert tones. AirPlay video is available for iPod and YouTube. FaceTime requires a Wi-Fi connection. FaceTime may not be available in all countries or regions. Requires the Dock Connector to VGA Adapter or Apple Digital AV Adapter, sold separately.