The Apple Watch 3, or the Apple Watch Series 3 as it might be called, is probably a long way off yet, but there are already a few rumors about it and as the biggest name in smartwatches it's sure to be the subject of numerous leaks well before its launch.
This guide will keep you up to date with all the latest news and rumors, along with our own analysis.
If that's not enough we've even added a wish list of features we want to see -check it all out below.
There aren't any release date rumors yet and while we can often look at previous releases to guess at the schedule that's not as easy with the Apple Watch, as rather than a roughly 12-month gap between the first two there was a 17-month one.
What we can be fairly confident of is that there will be at least a year between the Apple Watch 2 and the Apple Watch 3, which means we're not likely to see the Apple Watch 3 before September 2017 at the earliest.
If it arrives then, it will probably launch alongside the iPhone 8. The problem is the original Apple Watch launched in April, so perhaps we'll be waiting until April 2018, or maybe Apple will choose another date altogether. All we can say for sure is that you've got a long time to save.
TechRadar's take: Apple doesn't seem to see the Apple Watch as a device which needs refreshing every year, so don't count on seeing the Apple Watch 3 before 2018.
We wouldn't expect the size or shape of the screen to change for the Apple Watch Series 3, so expect a square 1.65-inch display. It's likely to still be OLED too, especially now that Apple is rumored to be moving towards that tech for the iPhone 8.
On the other hand, it's also been rumored Apple is considering Micro-LED panels for its next generation wearable. These are brighter and more power efficient than OLED, but they also tend to be more expensive.
Whatever the technology, there's a good chance that the resolution will remain at 390 x 312, as Apple rarely seems in any hurry to up the resolution of its devices – though this is one area which could stand to be improved, as while the Apple Watch 2 has a fairly crisp display it's not quite pin sharp, which isn't ideal given that analogue watches are.
TechRadar's take: Apple is sure to improve the screen in some ways, be it a jump in resolution or changing the display technology, but don't expect big changes.
While the general shape and style of the Apple Watch 3 probably won't be much different to the Apple Watch 2, certain aspects of the design could change substantially.
For one thing, there's an Apple patent detailing a smart fabric wristband that could act as an extra display, showing the time or simple notifications. We're wary of patents as they often don't turn into anything, but this would be a clever way to extend the otherwise small screen of the Apple Watch.
We could also see new materials used in the case. Apple added a ceramic option for the Apple Watch Series 2, but there have been whispers of a titanium or platinum case, as reported by Apple Insider, and there have long been rumors of Apple working with Liquidmetal.
It's also possible that the Apple Watch 3 will be smaller and slimmer than current models. There aren't any rumors of this, but one of the biggest issues with smartwatches is their size. On the other hand, the Apple Watch 2 is actually marginally thicker than the first generation, so Apple might choose to pack more tech in instead of slimming it down.
One thing that probably won't change is the waterproofing. This was a major new feature for the Apple Watch 2 and we'd be very surprised if Apple removed it for the Apple Watch 3.
TechRadar's take: One or more new case materials are likely to be added, but most of the current ones will probably remain. The overall look of the Watch is unlikely to change much.
The Apple Watch Series 2 doesn't have a camera, but the Apple Watch Series 3 might. It's a feature which was at one point rumored for the Apple Watch 2, allowing you to make and receive FaceTime calls, so it's possible that the idea will be resurrected for the Apple Watch 3.
Battery life on the Apple Watch 2 is a solid two days – much improved from the daily charge of the original Apple Watch, and while there's no news on the Apple Watch 3's battery life it seems unlikely that it would be any worse. Hopefully it will be better.
TechRadar's take: A FaceTime camera doesn't seem like it would be a priority feature, but may be included if Apple can fit one in without sacrificing much else. Expect at least two days of battery life, possibly longer.
Depending on when it launches the Apple Watch 3 will likely run either watchOS 4 or watchOS 5. There's no news yet on what features these might include, but Apple is likely to further work on optimizing performance.
That should also be helped by a new processor, which will probably be called the S3. It's likely to be a dual-core chip, much like the S2 in the Apple Watch 2, but will presumably be significantly faster.
TechRadar's take: The Apple Watch 3 will run whatever the latest version of watchOS happens to be when it launches – probably watchOS 4. You can expect snappier performance too.
Apple added GPS to the Apple Watch 2, so you can track your runs without a phone, but with the Apple Watch 3 the company might go one better and allow it to work completely independently of an iPhone.
We're not just talking fully standalone apps, but also potentially its own SIM card, allowing access to mobile data and the ability to call and text even if you've left your phone at home.
Supposedly Apple considered these sorts of features for the Apple Watch 2, but found them too much of a drain on the battery. If the company can overcome that problem this could become the main selling point of the Apple Watch 3.
TechRadar's take: Cellular capabilities could be the big feature the Apple Watch 3 needs to really stand out from previous models, so this is likely to be something Apple's going to try and include.
The original Apple Watch started at $349/£299/AU$499 when it launched, and the Apple Watch 2 upped the prices to $369/£369/AU$529.
So far there aren't any price rumors for the Apple Watch 3, but it's likely to stay at roughly around the same price as the Apple Watch 2, as although the prices went up between the first and second generations we'd think the Watch 3 might struggle to sell if it starts much higher.
The Apple Watch 2 was a big upgrade on the original Apple Watch, but some big rumored features also failed to materialize, so there's certainly things left to be added. Here's what we want to see in the Apple Watch 3.
The single biggest feature of the Apple Watch 3 could be the ability to get cellular connectivity without being tethered to a phone.
This was rumored for the Apple Watch 2 and hopefully for the next model it will actually happen, as it could turn the Apple Watch from an accessory into a standalone device.
The Apple Watch 2 can easily last for two days between charges, which is a big improvement on the Apple Watch Series 1, but it still pales in comparison to the Pebble range, which can last for a week or more.
Those watches are also far lower spec, so the difference is understandable, but if Apple can find a way to further stretch out the battery life of the Watch 3 the company could have the first truly essential smartwatch on its hands, or wrists.
The Apple Watch 2 already has a fairly sharp screen, but the fact that it has a screen at all means it doesn't look as crisp as an analogue watch and that's one hurdle that may need to be overcome before smartwatches become the norm, so we'd like to see a sharper display on the Apple Watch 3.
The big selling point of the Apple Watch 2 over the original Apple Watch is GPS, marking it out as more of a fitness tracker.
But while that works well the watch as a whole still has a way to go before it can replace the best fitness trackers on the market. For example, there's a heart rate monitor built in, but it's not very accurate, so we'd like to see this improved for the Apple Watch 3.
A selection of more feature-packed health and fitness apps would help too, as currently they tend to be quite basic.
With the Apple Watch 2 being waterproof and seemingly built with athletes in mind it would make sense for the Apple Watch 3 to gain some extra durability.
Taking the Watch on runs, rides and swims makes it more exposed to the elements and accidents than if you were just wearing it around the house, and the increased fitness focus could see climbers, skiers and other extreme sports enthusiasts make use of it. As such it would be reassuring to know that it's built to last.
The Apple Watch 2 isn't weak, but the Apple Watch 3 could be stronger still.