Halo Collar 4 review

Great if…

• you want Halo's small-yard fences without paying for the newest model
• your dog sleeps indoors and the collar can charge every night
• you plan to add a second dog and every $100 counts

Skip it if…

• you hate charging: Halo states up to 40 hours (and 30+ hours elsewhere on the same page)
• you want the Precision+ correction service, which Halo features on the Collar 5
• you want no subscription at all

What living with it looks like

Living with the Collar 4 looks like living with the Collar 5. You draw fences in the app, the collar stores them and keeps working without a connection, and it guides your dog back with sound, vibration or, only if you set it, static. Live tracking runs in the app, four GPS updates per second, according to Halo.

The difference is the charging rhythm. Halo's own comparison gives up to 40 hours and a 2-hour charge, against up to 48 hours and 1 hour for the Collar 5. In practice that means a nightly charge rather than every other night.

The catch

The same membership applies: from $9.99 a month, about $320 over three years. And $424 is a limited-time price against a $549 list; if it ends, the Collar 5 at $524 becomes the obvious pick.

Halo publishes two battery figures for the Collar 4 on the same page (up to 40 hours and 30+ hours). We scored the higher "up to" figure, the same way we treat every brand's maximum claim, so expect the lower one on a cold, busy day.

Buying advice

Checked at $424 (list $549) on Halo's US store on November 9, 2026, with the Pack Membership on top. Same 1-year warranty and 90-day satisfaction guarantee as the Collar 5.