The 400 should be fine for the ATR (assuming it has the same tips as the ATE), they should also work on the HDSE but the ZS3 has smaller tips, about a millimeter thinner tip so I think the 300 or perhaps even the 200. I suggest the 200 because unlike other tips they don't have some edge that the tips can latch on to with their pressure, the tip is straight.
As for the HDSE, I'll be honest, I haven't used them immensely yet and I don't have an APTX phone so keep that in mind. I think they sound similar to the ZS3 but unlike the ZS3 they don't resolve as much details during those moments in a track when they get busy. At those times, the sound gets a bit grainy, at least in terms of the background details. The bass in the lows is nice but not overwhelming or too imposing, but they do make the highs seem less imposed at times, male vocals sound mostly smooth and clear (outside of those moments when the tracks get busy with too many details at the same time). Female vocals are nice and smooth as well and the highs when the track doesn't have imposing low frequencies can get high without being strident or too aggressive. I think they're a typical V-shaped earphone with decent bass, a slightly lesser version of the ZS3.
Compared to other Bluetooth earphones I've owned/used or tried I'd say they are not as warm as the Sony SBH80 which had a pleasant warm sound signature with good bass but they seem to be able to resolve slightly more detail than them. Compared to the Plantronics Backbeat Go 2 they are immensely better. Those Plantronics are the only recommendation I followed on Head-fi that disappointed me immensely, I really don't understand why so many people recommend them or hold them in such high regard, they have a very cold airy sound, the details are all muddy, they're bulky and uncomfortable and because of those two things don't stay in your ears very well which is terrible for any type of physical exercise.
The other bluetooth earphone I have, the Brainwavz Blu-100 are colder sounding, the bass isn't as imposing but seem to have smoother highs and clearer vocals. They don't seem to choke up as much and get grainy as the HDSE, but outside of the weaker bass I'd say they're more or less the same in terms of detail. The HDSE's signature though I'd consider more appropriate for working out. The good things about the Brainwavz are the construction quality, the features (come with comply tips in the box, rubberized wings which help keep them in place, and very comfortable to wear during exercise, packaging)
In terms of fit the earpieces are a bit big but they stay cupped in my ears and seem secure enough, but I'm not exercising with them... I have no idea how good they'd be while running but from a quick "shaking head test" I'd wager they would stay in my ears better than the Plantronics. For their price (around 10 euros on
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I'm sorry the review isn't more detailed, but to be fair I think I gave you a decent amount of free information in a single post, I hope it helps you out. Happy listening!