Memory: 192MB DDR SDRAM, 256MB Flash ROM (As of 22/2/2009, the phone has 90MB available for apps after boot(stock firmware))
Networks: Quad band GSM 850 / 900 / 1800 / 1900
Dual band UMTS 1700 / 2100 (US/Europe) (7.2/2 Mbit/s)
Keyboard: Full five-row QWERTY keyboard, OSK scheduled for ?Cupcake
Camera: 3.2MP camera with autofocus. There is no light ("flash") for the camera for low light conditions. Video recording is included as of the 1.5 "cupcake" version of the OS.
Dimensions: 117.7 mm x 55.7 mm x 17.1 mm
Audio: Like many HTC smartphones, the G1 has a mini-USB-compatible ExtUSB jack that carries audio signals alongside the regular USB signals, and can be converted with a dongle (now shipped with the phone)
Video formats: H.264, 3GPP, MPEG4, and 3GP files.
Audio formats: MP3, AAC, AAC+, WMA, MPEG4, WAV, MIDI, Real Audio, and Ogg
Storage: microSD slot (SDHC compatible). Comes with 1GB (2GB in UK) card. Works with up to 32GB microSDHC cards.
Battery: 1150mAh, relatively small for an XDA device. Cheaper upgrades are available on eBay US/Canada/UK.
Orientation and location: Accelerometer for sensing movement, digital compass, and a GPS receiver for fine-grained positioning.
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