Yes no problem.
I'll include all of them just because it's simpler.
Joie Steadi -
Has R44 and R129 versions. Not a lot changed between these.
This is a rear and forward facing seat only. (No booster mode). R44 version is up to 18kg. R129 version is up to 18kg/105cm (whichever comes first).
It's the most compact, and lightest. There is a very close model to the R129 version by Graco (which is a sister brand to Joie) called Graco Extend R129. This is often cheaper.
Joie Stages -
This one is only available under R44. It covers three stages - rear facing, forward facing, HBB. This one will last the longest for height, but does have the 18kg weight limit still. It needs quite a lot of seatbelt, and cars with a shorter seatbelt (e.g. older Fords) may struggle to fit it in without using the short seatbelt method, which is a bit of a pain.
Converts to a HBB seat up to 25kg/approx 125cm. The HBB mode is OK. Not the greatest fit ever. Would recommend only using as a RF seat, but it's not bad to use as a HBB for occasional use or as a spare.
Graco branded version is Graco Enhance (I am not sure if this is even available any more).
Every Stage - R44 version
This is basically the same as the Joie Stages, but the booster mode lasts up to 36kg/around 140-150cm. It got a bad crash test result when used as a FF 5-point-harness seat, but OK in rear facing or booster mode. (I don't know if the same judgement applies to the Stages - they are fairly similar in design.)
It uses a bit less seatbelt than the Stages, and despite the longer lasting use, I believe it may be slightly more compact for fit. You also get an extra recline setting to use, though honestly they're both very reclined - you won't see much difference. It might make a little bit of difference for front to back space.
Arguably, it has even more height capacity than the Stages, but in reality you'll hit the 18kg weight limit before maxing out the Stages in height, so I would say they are equal in terms of height capacity for rear facing. I am not sure whether either has better leg room.
Every Stage - R129 version
Joie changed this seat a fair bit for the R129 release so it gets a separate section. They removed the forward facing harness mode entirely, so it's just a rear facing seat up to 22kg or 105cm (whichever comes first) and then a high back booster seat up to 150cm.
So you get a little bit more weight capacity, but the height is restricted. (R44 Steadi usually lasts until more than 105cm, and R44 Stages or Every Stage definitely lasts longer.)
There is a Graco version - Graco Slimfit R129.