Arlo Essential HD (2nd Gen) vs TP-Link Kasa KC420WS (2026)

Updated September 2026

Data from Amazon and official Arlo and TP-Link sites.

2026 verdict

TP-Link Kasa KC420WS beats Arlo Essential HD (2nd Gen) in 2026, with its clearest edge on price, rating, and warranty.

Winner

TP-Link Kasa KC420WS

$37.99$49.9924% OFF

Buy on Amazon USA

It has the clearer edge on price, rating, and warranty, and it stays ahead on storage and 2K video. Arlo Essential HD (2nd Gen) can still be the right pick, but only if alerts and privacy zone outweigh the wider strengths of TP-Link Kasa KC420WS. Overall, TP-Link Kasa KC420WS makes more sense for most people.

Arlo

Arlo Essential HD (2nd Gen)

$47.25

Buy on Amazon USA

Winner

TP-Link

TP-Link Kasa KC420WS

24% OFF

$37.99

$49.99

Buy on Amazon USA

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Feature	Arlo Essential HD (2nd Gen)	TP-Link Kasa KC420WS	Winner
Price	$47.25	$37.99	TP-Link Kasa KC420WS
Rating	4.1	4.4	TP-Link Kasa KC420WS
Warranty	1 year	2 years	TP-Link Kasa KC420WS
Storage	Cloud	MicroSD Card Slot, Cloud	TP-Link Kasa KC420WS
2K Video	NO	YES	TP-Link Kasa KC420WS
Alerts	Motion, People, Animals, Vehicles, Familiar Faces, Packages, Smoke Alarm Sound, Carbon Monoxide Alarm Sound	Motion, People	Arlo Essential HD (2nd Gen)
Customizable Motion Zones	Subscription required	YES	TP-Link Kasa KC420WS
Privacy Zone	YES	NO	Arlo Essential HD (2nd Gen)
Weather Resistance	YES	IP65	Tie
Light	Spotlight	YES	Tie
PoE	NO	NO	Tie
Solar Charging	NO	NO	Tie

Arlo

Arlo Essential HD (2nd Gen)

$47.25

Buy on Amazon USA

+ Alerts: Motion, People, Animals, Vehicles, Familiar Faces, Packages, Smoke Alarm Sound, Carbon Monoxide Alarm Sound
+ Privacy Zone: YES
- Price: $47.25 vs $37.99
- Rating: 4.1 vs 4.4

Winner

TP-Link

TP-Link Kasa KC420WS

24% OFF

$37.99

$49.99

Buy on Amazon USA

+ Price: $37.99
+ Rating: 4.4
+ Warranty: 2 years
- Alerts: Motion, People vs Motion, People, Animals, Vehicles, Familiar Faces, Packages, Smoke Alarm Sound, Carbon Monoxide Alarm Sound
- Privacy Zone: NO vs YES

Frequently Asked Questions

Which is better overall: Arlo Essential HD (2nd Gen) or TP-Link Kasa KC420WS?

TP-Link Kasa KC420WS has the stronger overall profile in this comparison, especially for price, rating, and warranty.

What is the biggest difference between Arlo Essential HD (2nd Gen) and TP-Link Kasa KC420WS?

Price is one of the clearest differences: Arlo Essential HD (2nd Gen) lists $47.25, while TP-Link Kasa KC420WS lists $37.99.

Which one looks better on price?

Arlo Essential HD (2nd Gen) is listed at $47.25, while TP-Link Kasa KC420WS is listed at $37.99. TP-Link Kasa KC420WS (better spec).

Who should buy Arlo Essential HD (2nd Gen)?

Choose Arlo Essential HD (2nd Gen) if your priority is alerts and privacy zone and that matters more than price.

Who should buy TP-Link Kasa KC420WS?

Choose TP-Link Kasa KC420WS if your priority is price and rating and that matters more than alerts.

Full comparison table

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