I’ve been looking for the same thing recently,I almost went for an edge 25,but like you I read about the problems of inaccurate recording when riding tight twisty trails,because they don’t have the 1 second recording,the Garmin vivoactive is the same I believe.
Someone on here suggested the Bryton rider 100,310, etc, the 100 is a similar size to the edge 25 and does have 1 second recording,I haven’t tried one myself but most reviews seem pretty good, although there are some reports of the USB connection coming loose.
They seem to be available for £50-60 ,and £70 odd for the 310 which is a bit bigger.There is also one with mapping on,the 530 for about£135.Think I’m going to give one a try soon.