I wish they would've added features like LED lighting and other improvements while keeping Solar and Atomic clock syncing. Instead of modern smart watch stuff.
These watches have cheap batteries that you can swap in two minutes. Not a big deal. Solar batteries cost a lot more money and will render this watch as e-waste in the future.
I have the ABL-100WE-1A version, it has LED backlight. all of the ABL-100WE have it. I press 3 seconds on the mode button, the watch syncs to the phone, syncs the clock and doesn't drift for a long time, and it also syncs the steps from pedometer.