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Omron Pocket Pain Pro (PM400) vs iReliev TENS Unit Pain Relief System (ET-1313)

A sourced, side-by-side comparison. Omron Pocket Pain Pro (PM400) is cheaper at $51.99. Every spec and price links to its source.

Which is better: the Omron Pocket Pain Pro (PM400) or iReliev TENS Unit Pain Relief System (ET-1313)?

On the specs we track, they're closely matched. The Omron Pocket Pain Pro (PM400) is the cheaper at $51.99.

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Full spec sheet

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

Spec Omron Pocket Pain Pro (PM400) iReliev TENS Unit Pain Relief System (ET-1313)
US price $51.99 $59.95
BrandOmroniReliev
Released
Output channels 1 2
Intensity levels 10 25
Preset modes 5 (3 pain-relief programs: Arm/Shoulder, Lower Back, Leg/Foot + 2 massage modes: Knead, Steady) 8
Power source 2x AAA batteries (included) 3x AAA batteries
Electrode pads included 2
Timer range min 0-15 up to 60 (adjustable)
Wireless No No
Fda cleared Yes Yes

Sources — Omron Pocket Pain Pro (PM400): omronhealthcare.com (verified 2026-08-01). iReliev TENS Unit Pain Relief System (ET-1313): medgrade.org (verified 2026-08-01).

What's the difference between the Omron Pocket Pain Pro (PM400) and iReliev TENS Unit Pain Relief System (ET-1313)?

Where the two actually differ on the specs we track (5 of 8). Matching specs are omitted.

  • Output channels: Omron Pocket Pain Pro (PM400) 1 vs iReliev TENS Unit Pain Relief System (ET-1313) 2
  • Intensity levels: Omron Pocket Pain Pro (PM400) 10 vs iReliev TENS Unit Pain Relief System (ET-1313) 25
  • Preset modes: Omron Pocket Pain Pro (PM400) 5 (3 pain-relief programs: Arm/Shoulder, Lower Back, Leg/Foot + 2 massage modes: Knead, Steady) vs iReliev TENS Unit Pain Relief System (ET-1313) 8
  • Power source: Omron Pocket Pain Pro (PM400) 2x AAA batteries (included) vs iReliev TENS Unit Pain Relief System (ET-1313) 3x AAA batteries
  • Timer range min: Omron Pocket Pain Pro (PM400) 0-15 vs iReliev TENS Unit Pain Relief System (ET-1313) up to 60 (adjustable)

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