tens unit
Worth a lookShows a $16.3M/yr market, but a deep review moat (17,798 avg reviews) keeps it on the watch list.
Market size
Incredible$16.3M$16.3M/yr · 7.7M searches
Avg price
Incredible$36.14avg listing price — sweet spot $15–$100
Price range
Incredible$20.48–$69.35cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good5.8%search→purchase rate — share of searches ending in a sale
Returns
Good3.0%return rate — above 5% kills the launch gate
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Competition
Okay64%top-5 click share — leaders hold, buyers still browse
Brand share
Okay88%top-5 brand share — brands hold most of the demand
Growth
Bad-1.1%90-day search growth — must beat 0% to launch
Review moat
Bad17,797.94avg incumbent reviews — the moat a new listing must climb
According to Flapen's Amazon United States niche tracking, tens unit is a $16.3M/yr Amazon United States market (7.7M searches/yr). The top 5 brands hold 88% of demand. Verdict: Worth a look — 53/100.
Data updated Jul 14, 2026 · scored weekly · How we score niches
tens unit market data
- Units sold / yr
- 400K–500K
- avg 25,000–30,000/product
- Revenue / yr
- $14.5M–$18.1M
- units × avg price
- Conversion rate
- 5.8%
- Avg BSR
- #58
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 100%
- Out of stock
- 0.4%
- Avg brand age
- 44 months
- Avg seller age
- 162 days
Competition & brand share
The top 5 products take 64% of clicks — established leaders, but buyers still shop beyond them.Brands
9 flat
Sellers
18
Top-5 brand share
88%
Top 20: 100%
Top-5 click share
64%
Top 20: 100%
Open market
7%
- AUVON29%
- TENS 700028%
- AVCOO12%
- Comfytemp11%
- Neocarbon7%
- Belifu5%
- Open — no brand owns it (3 brands, 7%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -1.1% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.2×
Top tens unit search terms
- tens unit3.6M/yr
- tens unit muscle stimulator1.6M/yr
- muscle stimulator271K/yr
- tens391K/yr
- tens machine369K/yr
- ems muscle stimulator266K/yr
- nmes unit muscle stimulator106K/yr
- tens units122K/yr
- ems125K/yr
- tens machines for pain relief115K/yr
Top tens unit products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 16 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
TENS 7000 Digital TENS Unit with Accessories - Muscle Stimulator Machine for Back Pain Relief Sciatica Neck Nerve Shoulder Hip Elbow Muscle Pain Relief
TENS 7000$38.564.6★113,152 rev
AUVON 3-in-1 TENS Unit Muscle Stimulator EMS Massage Machine with 40 Intensities for Gradual Shoulder Sciatica Back Pain Relief 24 Modes Rechargeable Electronic Pulse Massager with 12 TENS Pads
AUVON$29.454.6★3,333 rev
AUVON Rechargeable TENS Unit Muscle Stimulator 24 Modes 4th Gen TENS Machine with 8pcs 2x2 Premium Electrode Pads for Pain Relief
AUVON$24.724.6★34,777 rev
AUVON Dual Channel TENS Unit Muscle Stimulator Machine with 20 Modes 2 and 2x4 TENS Unit Electrode Pads
AUVON$28.054.6★43,541 rev
AVCOO 3-in-1 TENS Unit Muscle Stimulator with 30 Modes 40 Intensities TENS Machine for Gradual Back Pain Relief Therapy Rechargeable EMS Unit Massager with 12 TENS Electrode Pads a Storage Bag
AVCOO$29.294.6★2,839 rev
Newest
by launch date
Comfytemp 4 Outputs TENS Unit for Cover Multiple Parts TENS Unit Muscle Stimulator with Customizable User Mode & 19 Modes FSA HSA Eligible Pain Relief & Massage for Back Shoulder Neck Sciatica
Comfytemp$21.22345 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$38.94906 rev
MASTOGO Wireless TENS Unit Back Pain Relief Massager- Muscle Stimulator Machine - Wireless TENS Unit Muscle Stimulator- tens Unit
MASTOGO$49.961,339 rev
AUVON 3-in-1 TENS Unit Muscle Stimulator EMS Massage Machine with 40 Intensities for Gradual Shoulder Sciatica Back Pain Relief 24 Modes Rechargeable Electronic Pulse Massager with 12 TENS Pads
AUVON$29.453,333 rev
AVCOO 3-in-1 TENS Unit Muscle Stimulator with 30 Modes 40 Intensities TENS Machine for Gradual Back Pain Relief Therapy Rechargeable EMS Unit Massager with 12 TENS Electrode Pads a Storage Bag
AVCOO$29.292,839 rev
Trending
90-day click momentumComfytemp 4 Outputs TENS Unit for Cover Multiple Parts TENS Unit Muscle Stimulator with Customizable User Mode & 19 Modes FSA HSA Eligible Pain Relief & Massage for Back Shoulder Neck Sciatica
Comfytemp$21.224.5★
Comfytemp Wireless TENS Unit Machine for Pain Relief FSA Eligible TENS Unit Muscle Stimulator with 2 Sets 30 Modes HSA TENS Device for Back Rechargeable Portable with APP Control Gift for Mom Dad
Comfytemp$36.324.3★
MASTOGO Wireless TENS Unit Back Pain Relief Massager- Muscle Stimulator Machine - Wireless TENS Unit Muscle Stimulator- tens Unit
MASTOGO$49.964.4★
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$38.944.3★
AUVON Rechargeable TENS Unit Muscle Stimulator 24 Modes 4th Gen TENS Machine with 8pcs 2x2 Premium Electrode Pads for Pain Relief
AUVON$24.724.6★
What buyers say about tens unit
What buyers praise and complain about, mined from review topics.What buyers love
“Works Well”
“Decent quality”
“easy to control”
“Very affordable”
“Great for muscle pain”
“Battery lasts forever”
“easy charging”
“As advertised”
“This is a very powerful tool”
“It has been helpful the the pain in my knee”
What buyers complain about
“Did not work”
“Broke very quickly”
“Adhesive is weak”
“No battery life”
“Does not keep charged”
“Not much pain relief”
“Confusing with poor instructions”
“Not verry good product”
“Difficult to use”
“the ones I ordered dont fit”
Top return reasons
Common questions
- Is tens unit profitable to sell on Amazon United States?
- The niche generates $16.3M/yr across 16 tracked products. 90-day search growth is -1.1%. Flapen's verdict: Worth a look (53/100).
- How competitive is the tens unit niche?
- 9 brands and 18 sellers compete. The top 5 products take 64% of clicks and top 5 brands hold 88% of demand.
- What do buyers complain about in tens unit?
- Top complaints mined from reviews: Functionality-Overall, Durability, Adhesion/Stickiness. The return rate is 3.0%.
- When does demand for tens unit peak?
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- What does it cost to enter the tens unit niche?
- Listings span $20.48–$69.35; the average listing price is $36.14 (sweet spot $15–$100). The average incumbent carries 17,798 reviews — the moat a new listing must climb.