Zhiyun Smooth 5S AI review: the smartphone stabilizer that always follows
Zhiyun Smooth 5S AI: two-minute review
Smartphone stabilizers, which use a self-levelling gimbal to keep a mounted phone movement’s smooth, steady and shake-free while it captures video, have become an essential part of many content creators’ toolkits. As a result, there are now dozens of options for anyone who wants to transform their smartphone into a cut-price Steadicam – and Zhiyun has as much experience in this sector as any of its rival manufacturers.
The Smooth 5S AI is Zhiyun’s current flagship mobile stabilizer, putting it in direct competition with models like the Insta360 Flow Pro and DJI Osmo Mobile 6. As its name suggests, it’s an upgraded version of the Smooth 5, sporting a very similar design but incorporating a few improvements – most notably an AI-powered tracking module that I think represents its most appealing selling point.
I’ll get into why shortly, but in terms of general design I found the Smooth 5S AI to be pretty impressive. Constructed of lightweight but sturdy black plastic, it sports a professional look that suggests it’s built for serious creative work. The handle is textured to aid grip and I was pleased by the way the control layout puts a remarkable number of buttons and dials within easy, comfortable reach when it was in my hand. While a tripod attachment allows the gimbal to stand on a flat surface, there’s no extension rod to increase its length (something you get with many rival stabilizers), which makes it less useful for self-shooting vlog recording.
When not in use, the Smooth 5S AI’s gimbal arm can be locked in place. Part of me wishes it folded down as well as the Insta360 Flow Pro and DJI OM 6 (which are both verging on pocket-size when not in use) but Zhiyun would doubtless argue that the Smooth 5S AI’s larger, more complex gimbal offers a greater range of movement and stability than these competitors’ equivalents (NB: Zhiyun also offers a smaller folding stabilizer, the Cinepeer CQ5, for those that require something more portable than the Smooth 5S AI).
To use the stabilizer, your phone is placed within the ‘jaws’ of a gripping mechanism; the hold is secure, but mounting and dismounting is much quicker and easier with the magnetic clamp method used by the DJI and Insta360 stabilizers. The Smooth 5S AI’s clamp can hold phones up to 10mm thick and 300g in weight and can be manually rotated 90º to switch between capturing portrait and landscape content. Some balancing is required on the gimbal’s roll axis arm once your phone is in place, to improve stabilization performance, but it takes only a few seconds.
When the gimbal is powered on, it’ll automatically self-balance, holding the phone level with the horizon; it’ll also connect to the phone via Bluetooth, provided it’s already been paired before. If you feel the levelling is slightly off, you can manually adjust it using the ZY Cami companion app (more on this later) or ask the app to recalibrate things automatically. I found that I did need to manually adjust to get it satisfactorily level, but once set up properly I didn’t need to touch it again.
Stabilization works very well – to a point. The 3-axis gimbal succeeded in keeping my iPhone 13 level and followed my movements smoothly, but if I tilted the handle more than around 40 degrees in either direction the gimbal would abruptly give up, and the phone would tilt too. This isn’t too much of an issue as long as you’re aware of it, but I was expecting a little more robustness in the stabilization.
There are several stabilization modes to choose from. I generally found Pan Follow, which follows your movements while preventing the phone from tilting up and down, to be the most useful for standard vlog or b-roll content, but other users might enjoy the more dramatic movements offered by the Point Of View or Vortex modes.
Gimbal movement can also be adjust manually using the on-board thumbstick control, while tapping the trigger on the front of the handle twice resets it to its standard position; tapping it three times flips the phone around to face the opposite direction. Other controls of note include an on/off button for the useful front-facing LED fill light and a chunky wheel which can be used to adjust camera zoom and gimbal tilt.
The app-agnostic tracking is what really sets the Smooth 5S AI aside from its competitors. Thanks to a small magnetic ‘AI’ module with a built-in camera, which sits on the clamp and can be faced either towards or away from the user, the gimbal is able to track human faces when using any app. Some rival models, like the DJI OM 6, will only track people when using their own companion app, while the Insta360 Flow Pro’s DockKit-enabled tracking means it can track while using the native iPhone camera app (and many third-party apps), but the Smooth 5S AI’s tracking is hardware-based, which means it’ll work with any phone or camera app around.
That’s great for anyone who’d rather use third-party apps, of course, but I’d caution that the tracking is noticeably smoother and more responsive when using the ZY Cami app than it is when using with the AI module. With the latter, the gimbal movements are jerkier and more delayed, which does take the shine off the AI module somewhat (interestingly, the same is true of the Insta360 Flow Pro’s DockKit tracking versus its companion app tracking).
The AI module supports gesture controls: make the ‘OK’ sign to start tracking (a green light indicates that it’s locked onto you), hold up your palm to stop tracking and use the ‘victory’ sign to start and stop recording. These all worked well, in my experience.
The ZY Cami app can be used for capturing video and photos, offering several special shooting modes like panorama, dolly zoom and slow motion. It also allows you to adjust image quality, add beauty filters, adjust gimbal settings, share content via social media and more. I found it to be a decent enough camera app, and using it isn’t a huge disadvantage over, say, the iPhone’s built-in camera app.
Finally, a quick word about battery life. It’s impressive, with Zhiyun claiming seven hours of use with the AI tracker and fill light on – and my real-world testing suggests that figure is accurate. You can also use the Smooth 5S AI as a power bank, using a second USB-C port on the gimbal arm to top up your phone’s battery while it’s mounted.
While I find the simpler and more compact likes of the Insta360 Flow Pro and DJI Osmo Mobile 6 more appealing on the usability and portability fronts, the Zhiyun Smooth 5S AI is undoubtedly an impressive alternative with solid stabilization and, via its AI tracking module, better built-in subject tracking than either of its rivals.
Zhiyun Smooth 5S AI: price and availability
The Zhiyun Smooth 5S AI costs $249 / £169 / AU$309 and is available now. Do look out for cut prices, as we do see this gimbal on sale from time to time. You can see the live prices in the links above.
Zhiyun Smooth 5S AI: specs
Zhiyun Smooth 5S AI: Also consider
Insta360 Flow Pro
Insta360’s compact foldable gimbal feels like the pick of the current mobile stabilizer bunch. With excellent battery life, a handy power bank function and the ability to subject track when using third-party iPhone apps (or the native iPhone camera), it’s an impressive all-rounder – and cheaper than the Zhiyun Smooth 5S AI.
Read our Insta360 Flow Pro review
DJI Osmo Mobile 6
While only able to track subjects when using its Mimo companion app, the OM 6 offers a more ergonomically pleasing and slicker user experience than both the Smooth 5S AI and the Insta360 Flow Pro; it just feels better in the hand and smoother with its movements. Its 6.5-hour battery life isn’t quite as long as either, however.
Read our DJI Osmo Mobile 6 review
Should I buy the Zhiyun Smooth 5S AI
Buy it if...
You need a stabilizer that’ll track with any app
Some stabilizers only track with certain camera apps. Not this one: its AI module allows it to keep you centred in the frame no matter what app you’re using to film yourself.
You need a fill light built-in
The integrated LED light makes filming in dark conditions possible without the need to add additional light modules (although these are sold separately if you want things even brighter).
Don't buy it if...
You need an ultra-portable stabilizer
While it does lock up for storage, the Smooth 5S AI doesn’t fold over to an almost pocketable size. You’ll need a fairly large amount of bag space to transport it.
You’re a vlogger who wants to walk and film
With no extension rod inside the handle, it’s harder to film yourself while walking and holding the Smooth 5S AI than with some other mobile stabilizers. Vloggers beware.
How I tested the Zhiyun Smooth 5S AI
- One week of use
- Tested with iPhone 13
- Used for B-roll and vlogs
I used the Zhiyun Smooth 5S AI in and around my home for a week, using it to record footage both on the move and with it sat on a desktop using its tripod. I tested it with my Apple iPhone 13 and a variety of camera apps including Zhiyun’s own ZY Cami and the native iPhone camera app, and used the phone’s front and rear cameras to record b-roll and vlog-style videos.
First reviewed November 2024
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