period pain relief device
Skip itSoft demand (-21.9% this quarter) — this niche doesn't clear our bar today.
Avg price
Great$57.28avg listing price — sweet spot $15–$100
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Price range
Good$19.54–$133.79cheapest to priciest tracked listing — scored on the share inside $15–$100
Returns
Good2.5%return rate — above 6% kills the launch gate
Brand share
Okay86%top-5 brand share — brands hold most of the demand
Conversion
Bad1.9%search→purchase rate — share of searches ending in a sale
Competition
Bad71%top-5 click share — a locked-up shelf
Market size
Bad$93K$93K/yr · 85K searches
Review moat
Bad7,659.36avg incumbent reviews — the moat a new listing must climb
Growth
Bad-21.9%90-day search growth — must beat 0% to launch
Competition
The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.Brands
10 falling
Sellers
18
Top-5 brand share
86%
Open market
9%
- Livia55%
- Zolly12%
- monthlee9%
- iSTIM5%
- Flyhorse5%
- Beurer4%
- Open — no brand owns it (4 brands, 9%)
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 14 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Livia Menstrual Pain Relief Device Lavender Off-Switch for Period Pain Portable & Discreet Rechargeable Up to 8 Hours Battery Complete Kit with Stick-On Pads The Go-to Travel Partner
Livia$133.184.2★955 rev
Menstrual Heating Pad for Period Cramps Portable Heating Pad for Period Cramps Relief with Heat & Massage Wearable Cordless Warmer for Pain Relief Rechargeable & Wireless for Women
Zolly$39.824.5★259 rev
Livia Menstrual Pain Relief Device Pink Off-Switch for Period Pain Portable & Discreet Rechargeable Up to 8 Hours Battery Complete Kit with Stick-On Pads The Go-to Travel Partner
Livia$133.794.2★955 rev
monthlee - Wireless Tens Machine for Period Pain Relief & Endometriosis | Electric Rechargeable Tens Machine for Pain Relief | 6 Massage Modes 20 Intensity Levels for Relaxation (Yellow)
monthlee$43.304.5★38 rev
Livia Flower Pads | Electrodes Menstrual Pain Relief Device | Compact Lightweight Discreet | Skin-Friendly & Easy to Apply | 1 Set of Electrodes
Livia$19.544.2★955 rev
Newest
by launch datemonthlee - Wireless Tens Machine for Period Pain Relief & Endometriosis | Electric Rechargeable Tens Machine for Pain Relief | 6 Massage Modes 20 Intensity Levels for Relaxation (Yellow)
monthlee$43.3038 rev
Menstrual Heating Pad for Period Cramps Portable Heating Pad for Period Cramps Relief with Heat & Massage Wearable Cordless Warmer for Pain Relief Rechargeable & Wireless for Women
Zolly$39.82259 rev
iStim S1 Wireless TENS Unit for Menstrual Relief Period Pain Relief Device for Period Cramps and Back Pain TENS Machine with Heat Rechargeable Drug-Free TENS Massager with Japanese Gel Pads
iSTIM$67.0672 rev
KingPavonini Wireless TENS Unit Muscle Stimulator for Pain Relief Portable Rechargeable TENS EMS Machine LED Screen Remote Dual Channel 6 Modes 16 Intensity Massager Charging Case (Blue)
KingPavonini$38.93882 rev
Belfiu TENS & PMS 24 Modes Muscle Stimulator for Pain Relief Therapy Electronic Pulse Massager Muscle Massager with 10 Pads Dust-Proof Drawstring Storage Bag Fastening Cable Ties
Belifu$30.6258,776 rev
Trending
90-day click momentumKingPavonini Wireless TENS Unit Muscle Stimulator for Pain Relief Portable Rechargeable TENS EMS Machine LED Screen Remote Dual Channel 6 Modes 16 Intensity Massager Charging Case (Blue)
KingPavonini$38.934.2★
monthlee - Wireless Tens Machine for Period Pain Relief & Endometriosis | Electric Rechargeable Tens Machine for Pain Relief | 6 Massage Modes 20 Intensity Levels for Relaxation (Yellow)
monthlee$43.304.5★
Menstrual Heating Pad for Period Cramps Portable Heating Pad for Period Cramps Relief with Heat & Massage Wearable Cordless Warmer for Pain Relief Rechargeable & Wireless for Women
Zolly$39.824.5★
Portable Cordless Menstrual Heating Pad with 4 Heat Levels and 4 Massage Modes Electric Fast Large Heating Belly Wrap Belt (Black)
Flyhorse$24.624.4★
iDOO Portable Heating Pad FSA Eligible Items Birthday Gifts for Mom Women Pink
iDOO$22.414.5★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -21.9% search growth over the last 90 days.Peak months: Jan, Dec · busiest ÷ quietest = 2.0×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Its easy to wear”
“Overall, its performance is consistent with the product description”
“so far it has been very effective”
“Excellent price”
“really helps loosen my muscles”
“Holds a charge forever”
“Amazing battery life”
“This is a very powerful tool”
“Small and portable”
“Very comfortable”
What buyers complain about
“DOES NOT CHARGE”
“Stopped Working After First Use”
“Will not function at all”
“Terrible battery”
“the ones I ordered dont fit”
“The heating function stopped working”
“I have severe back pain”
“Not verry good product”
“ULTRA sticky”
“Expensive”