Best Wireless Dog Fences · head-to-head

PetSafe Wireless Pet Containment System (PIF-300) vs MIMOFPET X3 Wireless Dog Fence, 2-in-1 Training Collar

A sourced, side-by-side comparison. MIMOFPET X3 Wireless Dog Fence, 2-in-1 Training Collar is cheaper at $129.99. Every spec and price links to its source.

Which is better: the PetSafe Wireless Pet Containment System (PIF-300) or MIMOFPET X3 Wireless Dog Fence, 2-in-1 Training Collar?

On the specs we track, they're closely matched. The MIMOFPET X3 Wireless Dog Fence, 2-in-1 Training Collar is the cheaper at $129.99.

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Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec PetSafe Wireless Pet Containment System (PIF-300) MIMOFPET X3 Wireless Dog Fence, 2-in-1 Training Collar
US price $289.99 Current price on petsafe.com $129.99
BrandPetSafeMIMOFPET
Released
Coverage area Up to 1/2 acre circular boundary, adjustable 10-180 ft diameter; expandable with a second transmitter Adjustable circular radius 25-3,500 ft (14 levels); up to ~856 acres
Containment type Radio (RF) wireless — indoor AC-powered transmitter, no wire buried Radio (RF) wireless — circular boundary around a portable remote controller, no buried wire
Collars supported 1 waterproof receiver collar included; unlimited additional collars purchasable 1 collar in base kit; independently adjustable settings for up to 4 dogs on one system
Correction levels 5 adjustable static correction levels plus tone-only mode 3 modes — beep, vibration (1-9 levels), and static correction (1-30 levels)
Collar battery life RFA-67 replaceable battery, approx. 1-2 months per battery Rechargeable; up to 185 days standby, approx. 85 hours active use with fence mode enabled
Waterproof rating Waterproof receiver collar (no IP rating published) IPX7
Dog weight neck range 8 lb minimum, 6 months+; neck 6-28 in 10-110 lb; neck 16-23.6 in (adjustable retractable buckle)
Boundary adjustability Circular boundary only; diameter adjustable at transmitter 14 adjustable distance levels, 25-3,500 ft, circular boundary only

Sources — PetSafe Wireless Pet Containment System (PIF-300): petsafe.com (verified 2026-08-05). MIMOFPET X3 Wireless Dog Fence, 2-in-1 Training Collar: mimofpet.net (verified 2026-08-05).

What's the difference between the PetSafe Wireless Pet Containment System (PIF-300) and MIMOFPET X3 Wireless Dog Fence, 2-in-1 Training Collar?

Where the two actually differ on the specs we track (8 of 8). Matching specs are omitted.

  • Coverage area: PetSafe Wireless Pet Containment System (PIF-300) Up to 1/2 acre circular boundary, adjustable 10-180 ft diameter; expandable with a second transmitter vs MIMOFPET X3 Wireless Dog Fence, 2-in-1 Training Collar Adjustable circular radius 25-3,500 ft (14 levels); up to ~856 acres
  • Containment type: PetSafe Wireless Pet Containment System (PIF-300) Radio (RF) wireless — indoor AC-powered transmitter, no wire buried vs MIMOFPET X3 Wireless Dog Fence, 2-in-1 Training Collar Radio (RF) wireless — circular boundary around a portable remote controller, no buried wire
  • Collars supported: PetSafe Wireless Pet Containment System (PIF-300) 1 waterproof receiver collar included; unlimited additional collars purchasable vs MIMOFPET X3 Wireless Dog Fence, 2-in-1 Training Collar 1 collar in base kit; independently adjustable settings for up to 4 dogs on one system
  • Correction levels: PetSafe Wireless Pet Containment System (PIF-300) 5 adjustable static correction levels plus tone-only mode vs MIMOFPET X3 Wireless Dog Fence, 2-in-1 Training Collar 3 modes — beep, vibration (1-9 levels), and static correction (1-30 levels)
  • Collar battery life: PetSafe Wireless Pet Containment System (PIF-300) RFA-67 replaceable battery, approx. 1-2 months per battery vs MIMOFPET X3 Wireless Dog Fence, 2-in-1 Training Collar Rechargeable; up to 185 days standby, approx. 85 hours active use with fence mode enabled
  • Waterproof rating: PetSafe Wireless Pet Containment System (PIF-300) Waterproof receiver collar (no IP rating published) vs MIMOFPET X3 Wireless Dog Fence, 2-in-1 Training Collar IPX7
  • Dog weight neck range: PetSafe Wireless Pet Containment System (PIF-300) 8 lb minimum, 6 months+; neck 6-28 in vs MIMOFPET X3 Wireless Dog Fence, 2-in-1 Training Collar 10-110 lb; neck 16-23.6 in (adjustable retractable buckle)
  • Boundary adjustability: PetSafe Wireless Pet Containment System (PIF-300) Circular boundary only; diameter adjustable at transmitter vs MIMOFPET X3 Wireless Dog Fence, 2-in-1 Training Collar 14 adjustable distance levels, 25-3,500 ft, circular boundary only

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