Seresto Flea & Tick Collar for Dogs vs NexGard Chewables for Small Dogs

Seresto is the better pick for most owners who want set-and-forget protection: one collar lasts 8 months, works on dogs over 18 lbs, and is the vet-recommended collar with a long track record. NexGard is the stronger choice for small dogs (10.1–24 lbs) and for owners who prefer an oral chew and want fast flea kill and broad tick coverage. NexGard's 4.8 rating comes from far fewer reviewers than Seresto's 4.4 from nearly 9,000, so weigh the larger sample accordingly.

• Choose the Seresto collar if you want 8 months of flea and tick protection from one application and don't want to remember a monthly dose.
• Choose the NexGard chew if your dog is 10.1–24 lbs and you prefer a beef-flavored oral chew with fast flea kill and broad tick coverage.