Budget Action Cameras

Yes, for daylight recording. The SJ4000 line records 4K/30fps and 16MP photos from $59, and all three models are waterproof to 30m with the included case. If you mostly shoot in daylight on a mount, a budget SJCAM is worth it. If you shoot handheld in low light, spend more.

Every SJCAM in this line is under $100. Pick what you need:
SJ4000 Air ($59)—the lowest price for 4K/30 fps and 16 MP photos; single 2.0" screen.
SJ4000 Dual Screen ($79)—adds a 1.3" front screen for framing yourself; the best pick if you vlog.
SJ4000 WiFi ($99)—the same 4K/30 fps with the SJCAM ZONE app workflow and a 60 g body.

Yes, SJ4000 Air, SJ4000 Dual Screen, and SJ4000 WiFi all record 4K at 30 fps, plus 2.7K/30 and 1080P/60 or 120 fps. FunCam+ is the exception—it is a kids' camera and records 1080P.

SJ4000 Air ($59) is the cheapest route to 4K, with a single 2.0" screen. SJ4000 Dual Screen ($79) adds a 1.3" front screen so you can frame yourself and shoots 16MP photos. SJ4000 WiFi ($99) is the same 4K/30 fps core with the SJCAM ZONE app workflow for remote preview and transfer in a 60 g body.

Yes—it is built for children rather than for action sports. FunCam+ ($49.99) records 1080P, has a 2.4" screen, time-lapse and timed photo modes, digital stickers, and comes in multiple colors. It is not waterproof and not a substitute for an SJ4000 if the child will be near water.

SJ4000 Air at $59 covers travel and first-time use—4K, 16MP, and 30m waterproofing with the case. If you record yourself talking, the front screen on the SJ4000 Dual Screen ($79) is worth the $20. Students and casual users rarely need more than the Air; the money is better spent on a spare battery and a mount than on the next model up.