Highlights of the Steam Deck OLED 1TB:

Display: 7.4 inches, HDR OLED, 110% P3 color gamut, 90Hz, 1000 nits (HDR), 600 nits (SDR)
Camera: None
OS: SteamOS 3.5 (based on Arch Linux)
Chipset: AMD APU (6nm), Zen 2 CPU + RDNA 2 GPU
CPU: Quad-core 2.4–3.5 GHz
GPU: 8 RDNA 2 CUs @ 1.6 GHz
RAM: 16GB LPDDR5 (6400 MT/s)
Storage: 1TB NVMe SSD + microSD slot
Network: Wi-Fi 5, Bluetooth 5.3, USB-C
Battery: Li-Ion 50Wh, up to 12 hours gameplay
Charging: USB-C 45W PD 3.0 fast charging
Audio: Stereo speakers, dual microphones, 3.5mm jack, USB-C audio, Bluetooth audio
Controls: ABXY, D-pad, dual analog sticks, trackpads, gyro, grip buttons
Dimensions: 298 × 117 × 49 mm
Weight: 640 g
Colors: Black with orange accents