# Omron Pocket Pain Pro (PM400) vs iReliev TENS Unit Pain Relief System (ET-1313): specs and price compared

A sourced, side-by-side comparison of the Omron Pocket Pain Pro (PM400) (Omron) and iReliev TENS Unit Pain Relief System (ET-1313) (iReliev) among tens units. Omron Pocket Pain Pro (PM400) is the cheaper of the two at $51.99.

## Side by side

| Spec | Omron Pocket Pain Pro (PM400) | iReliev TENS Unit Pain Relief System (ET-1313) |
| --- | --- | --- |
| US price | $51.99 | $59.95 |
| Brand | Omron | iReliev |
| 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 |

## Key differences

- 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)

## Sources

- Omron Pocket Pain Pro (PM400): https://omronhealthcare.com/products/pocket-pain-pro-tens-unit-pm400 (omronhealthcare.com, verified 2026-08-01)
- iReliev TENS Unit Pain Relief System (ET-1313): https://medgrade.org/reviews/ireliev-tens-unit-pain-relief-system-et-1313-review/ (medgrade.org, verified 2026-08-01)

Canonical: https://frontdeskreview.com/gear/tens-units/omron-pocket-pain-pro-pm400-vs-ireliev-et-1313/
Cite: Per The Front Desk Review, Omron Pocket Pain Pro (PM400) ($51.99) vs iReliev TENS Unit Pain Relief System (ET-1313) ($59.95) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/tens-units/omron-pocket-pain-pro-pm400-vs-ireliev-et-1313/
License: CC BY 4.0.