Is kardia mobile case profitable to sell on Amazon United States?

The niche generates $37K/yr across 15 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -9.7%. Flapen's verdict: Skip it (32/100).

How competitive is the kardia mobile case niche?

12 brands and 15 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 84% of demand.

What do buyers complain about in kardia mobile case?

Top complaints mined from reviews: Quality-Overall, Size-Overall, Ease Of Use. The return rate is 2.8%.

When does demand for kardia mobile case peak?

Demand peaks in Dec; the busiest month runs 1.8× the quietest.

What does it cost to enter the kardia mobile case niche?

Listings span $6.12–$17.26; the average listing price is $9.46 (sweet spot $15–$100). The average incumbent carries 1,527 reviews — the moat a new listing must climb.

kardia mobile case

Skip it

A small market ($37K/yr) — this niche doesn't clear our bar today.

Conversion

Great7.5%

search→purchase rate — share of searches ending in a sale

Returns

Good2.8%

return rate — above 6% kills the launch gate

Review moat

Okay1,526.73

avg incumbent reviews — the moat a new listing must climb

Brand share

Okay84%

top-5 brand share — brands hold most of the demand

Avg price

Okay$9.46

avg listing price — sweet spot $15–$100

Competition

Bad71%

top-5 click share — a locked-up shelf

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Growth

Bad-9.7%

90-day search growth — must beat 0% to launch

Price range

Bad$6.12–$17.26

cheapest to priciest tracked listing — scored on the share inside $15–$100

Market size

Bad$37K

$37K/yr · 53K searches

According to Flapen's Amazon United States niche tracking, kardia mobile case is a $37K/yr Amazon United States market (53K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in Dec. Verdict: Skip it — 32/100.

Data updated Jul 17, 2026 · scored weekly · How we score niches

kardia mobile case market data

Units sold / yr: 4K–5K; avg 250–500/product
Revenue / yr: $38K–$47K; units × avg price
Launch success: —; 0 of 3 new (360d)
Conversion rate: 7.5%
Avg BSR: #1,396
Page quality: 0%
Prime: 100%
Sponsored: 73%
Out of stock: 0.0%
Avg brand age: 42 months
Avg seller age: 195 days

Competition & brand share

The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.

Brands

12 falling

Sellers

Top-5 brand share

84%

Top 20: 100%

Top-5 click share

71%

Top 20: 100%

Open market

13%

ALKOO36%
CoBak20%
Glamgen13%
Auriomuse9%
FINTIE6%
Yinke4%
Open — no brand owns it (6 brands, 13%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -9.7% search growth over the last 90 days.

Peak months: Dec · busiest ÷ quietest = 1.8×

Open Trend

Top kardia mobile case search terms

kardia mobile case19K/yr -16.2%6.2% conv.
kardia case11K/yr +8.1%6.2% conv.
kardiamobile case6K/yr +10.2%5.7% conv.
kardiamobile 6l case7K/yr -25.0%3.9% conv.
kardia mobile 6l case5K/yr -29.8%4.5% conv.
kardia 6l case4K/yr -1.5%5.4% conv.

All search terms

Top kardia mobile case 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 15 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

ALKOO Heart Monitor Case for AliveCor for KardiaMobile 1-Lead/for KardiaMobile 6L / for KardiaMobile 6L Max Hard EKG Monitor Travel Storage Bag with Pill Box and Carabiner Box Only

ALKOO$9.464.7★11,836 rev

Case for Kardiamobile 1-Lead/ 6L/ 6L Max EKG Heart Monitor Compatible with Kardia Mobile EKG Heart Monitor Hard Travel Box for Alivecor Kardiamobile Pill Box & Carabiner Clip Included

Glamgen$8.134.7★1,711 rev

Auriomuse Kardiamobile Case for Kardia Mobile 6L & 6L Max Portable Hard Shell Case with Silicone Pad for Kardiamobile EKG Heart Monitor

Auriomuse$15.104.7★185 rev

CoBak Case for KardiaMobile EKG Monitor 1-Lead/for Kardia Mobile Heart Monitor 6-Lead/for KardiaMobile 6L Max/for Apple and Android Devices - CASE ONLY

CoBak$8.754.6★1,562 rev

CoBak Case for KardiaMobile EKG Monitor 1-Lead/for Kardia Mobile Heart Monitor 6-Lead/for KardiaMobile 6L Max/for Apple and Android Devices - CASE ONLY

CoBak$8.914.6★1,562 rev

Newest

by launch date

COMECASE Heart Monitor Case for KardiaMobile 1-Lead/6L/6L Max

Comecase$7.748 rev

3mo ago

SARLAR Heart Monitor Case for Alivecor KardiaMobile 6L/6L Max/1-Lead Models Premium EVA Hard Shell Pouch with Carabiner and Lanyard KardiaMobile EKG/Personal Monitor Case with Easy Access - Black

sarlar$6.129 rev

6mo ago

CoBak Neoprene Case for AliveCor KardiaMobile 6-Lead EKG Monitor/KardiaMobile 6L Max/KardiaMobile 1-Lead with Magnetic Closure and Keychain Soft Protective Storage Bag - CASE ONLY

CoBak$8.5853 rev

9mo ago

Auriomuse Kardiamobile Case for Kardia Mobile 6L & 6L Max Portable Hard Shell Case with Silicone Pad for Kardiamobile EKG Heart Monitor

Auriomuse$15.10185 rev

1y ago

Protective Case Compatible with KardiaMobile 1L EKG Heart Monitor with Silicone Pad Travel Portable Cover (Case Only) Black

SavvyBloom$9.90102 rev

1y ago

What buyers say about kardia mobile case

What buyers praise and complain about, mined from review topics.

What buyers love

Size-Overall16%

“Fits great”

Ease Of Use16%

“Very handy”

Quality-Overall11%

“Good product delivers what it promises”

Advertised Vs Actual Product10%

“As advertised”

Drop/Impact Protection7%

“Nice Case for Device Protection”

Value For Money7%

“Good price”

Efficiency5%

“it does work”

Portability4%

“easy to carry”

Security3%

“Keeps items safe and secure”

Storage Capacity2%

“Holds items very well”

What buyers complain about

Quality-Overall11%

“not well made”

Size-Overall10%

“It feels a little too big”

Ease Of Use10%

“Very difficult to use”

Value For Money9%

“I did NOT realize the approximate $30/month fee was required”

Advertised Vs Actual Product8%

“a case was never advertised for it”

Connectivity-Overall7%

“It didnt seem to have a good connection in my home”

Magnetic Strength/Adsorption4%

“However, the magnetic latch broke the first time I opened the case”

Assembly/Installation3%

“needed help installing it”

Durability3%

“The second one they sent me pretty much stopped after a month”

Instructions/User Manual/Troubleshooting3%

“I struggled to complete the instructions”

Top return reasons

Size-Overall44%

Compatibility-Overall9%

Functionality-Overall8%

Advertised Vs Actual Product8%

Product Condition4%

Defective Material/Parts4%

Material Quality4%

Value For Money3%

Ease Of Use3%

Connectivity-Overall2%

Common questions

Is kardia mobile case profitable to sell on Amazon United States?: The niche generates $37K/yr across 15 tracked products. 0 of 3 products launched in the last 360 days are still selling. 90-day search growth is -9.7%. Flapen's verdict: Skip it (32/100).
How competitive is the kardia mobile case niche?: 12 brands and 15 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 84% of demand.
What do buyers complain about in kardia mobile case?: Top complaints mined from reviews: Quality-Overall, Size-Overall, Ease Of Use. The return rate is 2.8%.
When does demand for kardia mobile case peak?: Demand peaks in Dec; the busiest month runs 1.8× the quietest.
What does it cost to enter the kardia mobile case niche?: Listings span $6.12–$17.26; the average listing price is $9.46 (sweet spot $15–$100). The average incumbent carries 1,527 reviews — the moat a new listing must climb.