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Kardia Mobile Case

Skip it

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

Market size 9Growth 20Conversion 77Competition 24Returns 56Price range 20Avg price 29Brand share 36Review moat 50Quality gap 22

Conversion

Great7.5%

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

Returns

Good2.8%

return rate — above 5% 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

Is kardia mobile case profitable on Amazon?

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 size & sales

Units sold, revenue, conversion and listing quality across the tracked shelf.
Units sold / yr
4K–5K
avg 250–500/product
Revenue / yr
$38K–$47K
units × avg price
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: brands, sellers & click share

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

Brands

12 falling

Sellers

15

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%)

kardia mobile case demand & seasonality

Weekly Amazon search volume, last 104 weeks — -9.7% search growth over the last 90 days.
2K1KSpike '24Holiday '24Spike '25Prime Day '25Holiday '25Spike '26SepDecMarJunAugNovMarMay

Peak months: Dec · busiest ÷ quietest = 1.8×

Top kardia mobile case search terms shoppers use

The exact queries shoppers type, with yearly volume, growth and conversion.
  • kardia mobile case19K/yr
  • kardia case11K/yr
  • kardiamobile case6K/yr
  • kardiamobile 6l case7K/yr
  • kardia mobile 6l case5K/yr
  • kardia 6l case4K/yr
All search terms

Top kardia mobile case products & what they sell for

Every tracked product — its share of the shelf, its review moat, and what it sells for.

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%$4K20%$7K30%$11K40%$15K1101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

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

What reviews say buyers love and hate 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 kardia mobile case 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.