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52

double sided keyless door lock

Worth a look

Shows beatable incumbent ratings (4.2★), but weak search conversion (1.5%) keeps it on the watch list.

Market size 27Growth 49Conversion 18Competition 77Returns 26Price range 43Avg price 82Brand share 76Review moat 51Quality gap 84

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Avg price

Great$81.95

avg listing price — sweet spot $15–$100

Competition

Great38%

top-5 click share — an open shelf

Brand share

Great59%

top-5 brand share — no brand owns this niche

Review moat

Good1,473.12

avg incumbent reviews — the moat a new listing must climb

Growth

Okay+19.4%

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

Price range

Okay$9.37–$209.07

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

Market size

Okay$116K

$116K/yr · 97K searches

Returns

Okay4.9%

return rate — above 5% kills the launch gate

Conversion

Bad1.5%

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

According to Flapen's Amazon United States niche tracking, double sided keyless door lock is a $116K/yr Amazon United States market (97K searches/yr). The top 5 brands hold 59% of demand. Demand peaks in Jul–Aug. Verdict: Worth a look — 52/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

double sided keyless door lock market data

Units sold / yr
1K–1K
avg 0–100/product
Revenue / yr
$82K–$102K
units × avg price
Conversion rate
1.5%
Avg BSR
#211
Page quality
0%
Prime
98%
Sponsored
86%
Out of stock
0.3%
Avg brand age
42 months
Avg seller age
154 days

Competition & brand share

Clicks spread well past the top 5 (38% combined) — an open shelf where new products get seen.

Brands

26 falling

Sellers

49

Top-5 brand share

59%

Top 20: 95%

Top-5 click share

38%

Top 20: 78%

Open market

35%

  • Richelock23%
  • VEVOR11%
  • iuknob10%
  • BOTHSTAR9%
  • Rulart6%
  • iulock6%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +19.4% search growth over the last 90 days.
3K2KSpike '25Prime Day '25SepDecMarJunAugNovMarMay

Peak months: Jul, Aug · busiest ÷ quietest = 1.9×

Top double sided keyless door lock search terms

  • double sided door lock25K/yr
  • double sided keyless door lock15K/yr
  • double sided keypad door lock11K/yr
  • double sided keyless deadbolt10K/yr
  • double sided lock7K/yr
  • double sided keypad deadbolt5K/yr
  • double sided locking door knob6K/yr
  • double sided keypad lock4K/yr
  • two way door lock4K/yr
  • double sided fingerprint door lock4K/yr
All search terms

Top double sided keyless door lock 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.

0%4%$5K8%$9K12%$14K16%$19K101001K10K100K Reviews — right = deep review moat Market share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

What buyers say about double sided keyless door lock

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

What buyers love

Assembly/Installation24%

“Easy install”

Locking Mechanism18%

“Smart lock”

Quality-Overall11%

“Strong build quality”

Value For Money10%

“Good Value”

Ease Of Use5%

“Ease of use”

Advertised Vs Actual Product4%

“As advertised”

Security4%

“extra security”

Efficiency3%

“Works excellently”

Instructions/User Manual/Troubleshooting3%

“Easy to read instructions”

Strength3%

“Nice sturdy knob”

What buyers complain about

Locking Mechanism21%

“doesnt lock”

Quality-Overall14%

“very cheap quality”

Durability10%

“Broken”

Assembly/Installation6%

“A little tricky to install”

Functionality-Overall6%

“Does not work properly”

Size-Overall4%

“Too small”

Defective Material/Parts2%

“All three are defective”

Ease Of Use2%

“Not user friendly”

Battery Life2%

“replacing the batteries didnt help”

Instructions/User Manual/Troubleshooting2%

“No Instructions”

Top return reasons

Size-Overall30%
Locking Mechanism18%
Functionality-Overall12%
Defective Material/Parts6%
Mechanism Issues6%
Compatibility-Overall6%
Value For Money3%
Advertised Vs Actual Product3%
Assembly/Installation3%
Color3%

Common questions

Is double sided keyless door lock profitable to sell on Amazon United States?
The niche generates $116K/yr across 43 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +19.4%. Flapen's verdict: Worth a look (52/100).
How competitive is the double sided keyless door lock niche?
26 brands and 49 sellers compete. The top 5 products take 38% of clicks and top 5 brands hold 59% of demand.
What do buyers complain about in double sided keyless door lock?
Top complaints mined from reviews: Locking Mechanism, Quality-Overall, Durability. The return rate is 4.9%.
When does demand for double sided keyless door lock peak?
Demand peaks in Jul–Aug; the busiest month runs 1.9× the quietest.
What does it cost to enter the double sided keyless door lock niche?
Listings span $9.37–$209.07; the average listing price is $81.95 (sweet spot $15–$100). The average incumbent carries 1,473 reviews — the moat a new listing must climb.