Assuming you are looking for tech gifts within those price ranges:
-If the person is into photography, a good gift could be the Fujifilm X-T100 mirrorless camera. It's under $650 and has features that appeal to both beginners and more experienced photographers.
-For the person who is always on-the-go, the Mophie Powerstation XXL external battery pack could be a lifesaver. It's around $200 and can charge a laptop, smartphone, and other devices multiple times.
-The Amazon Echo Dot is a handy little device that can be used for a variety of things, from streaming music and podcasts to controlling smart home devices. It's only $50, making it a great gift for anyone.
-If you're looking for something a little more unique, the Anker Astro E1 portable battery pack is a great choice. It's only $25, but it can charge a smartphone up to five times.