相机 (xiàngjī) means "camera." It refers to a device used for taking photographs and can be modified by adjectives like 运动 (sports) to specify the type of camera.
你带相机了吗?我想拍几张照片。
Nǐ dài xiàngjī le ma? Wǒ xiǎng pāi jǐ zhāng zhàopiàn.
Did you bring a camera? I want to take a few photos.
他新买了一台运动相机,准备去爬山用。
Tā xīn mǎi le yì tái yùndòng xiàngjī, zhǔnbèi qù páshān yòng.
He just bought a new action camera and is planning to use it for hiking.
这台相机的画质非常清晰。
Zhè tái xiàngjī de huàzhì fēicháng qīngxī.
The image quality of this camera is very clear.