Hi mummies, hip carrier or M shape carrier? What the difference? My lo is 5 months which carrier is better?

Hip carrier is not recommended as it puts a strain on the spine. Recommended carriers are usually ergo, hana baby, Manduca, Tula. If you intend to baby wear a long time, you can consider manduca. I used my manduca for 5 years for two kids. Still loving it alot.