Doorbells · Head to head

Aqara Smart Video Doorbell G4 vs Arlo Video Doorbell 2K (2nd gen)

Full Smart Doorbells comparison in 2026

Updated August 2026
Data from Amazon and official Aqara and Arlo sites.
2026 verdict
The Aqara Smart Video Doorbell G4 leads this matchup on integrations, storage and features, backing its HomeKit Secure Video support with free microSD plus 7 days of cloud, and adding custom indoor and outdoor ringtones, voice changing and automatic replies, all with no subscription. The Arlo Video Doorbell 2K (2nd gen) is the more affordable, better-rated unit with sharper 2K video, a 180-degree square head-to-toe view, accurate person, package and vehicle recognition and customizable motion zones, but those alerts and all cloud video require an Arlo Secure subscription, with no local storage and no HomeKit or Matter. Both are 2.4GHz doorbells that run on battery or wired. Choose the Aqara Smart Video Doorbell G4 for fee-free local recording and Apple HomeKit; the Arlo Video Doorbell 2K (2nd gen) suits US buyers already paying for Arlo Secure who want its 2K square view and object recognition.
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FeatureAqara Smart Video Doorbell G4Arlo Video Doorbell 2K (2nd gen)Winner
Price$79.99$49.99Arlo Video Doorbell 2K (2nd gen)
Rating3.64.0Arlo Video Doorbell 2K (2nd gen)
IntegrationsGoogle Home, Alexa, Apple HomeKit, Home AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home AssistantArlo Video Doorbell 2K (2nd gen)
StorageMicroSD Card Slot, CloudCloudAqara Smart Video Doorbell G4
AlertsMotion, People, Familiar FacesMotion, People, Packages, Animals, VehiclesArlo Video Doorbell 2K (2nd gen)
Customizable Motion ZonesNOSubscription requiredArlo Video Doorbell 2K (2nd gen)
Outdoor Custom RingtoneYESNOAqara Smart Video Doorbell G4
Indoor Custom RingtoneYESNOAqara Smart Video Doorbell G4
Voice ChangingYESNOAqara Smart Video Doorbell G4
Automatic RepliesYESNOAqara Smart Video Doorbell G4
Warranty1 year1 yearTie
Battery Life4 months4 monthsTie

Frequently Asked Questions

Which is better overall: Aqara Smart Video Doorbell G4 or Arlo Video Doorbell 2K (2nd gen)?

The Aqara Smart Video Doorbell G4 is better overall thanks to free local storage and Apple HomeKit. The Arlo Video Doorbell 2K (2nd gen) is cheaper and better rated with sharper 2K video and strong recognition, but nearly all of its useful features sit behind an Arlo Secure subscription.

What is the biggest difference between them?

How you store and pay for video. The G4 records to microSD with no fee and works with HomeKit, while the Arlo Video Doorbell 2K (2nd gen) has no local storage and needs an Arlo Secure plan for cloud recording, smart alerts and even motion zones.

Which has sharper video and better alerts?

The Arlo. The Arlo Video Doorbell 2K (2nd gen) shoots 2K with a 180-degree square head-to-toe view and adds person, package and vehicle recognition, which is why it wins the video and alert categories, but that recognition is subscription-gated. The G4 is 1080p with people and familiar-face detection.

Does either avoid a subscription?

Only the Aqara. The Aqara Smart Video Doorbell G4 records locally to microSD (plus 7 days of free cloud) with no plan, while the Arlo Video Doorbell 2K (2nd gen) cannot save cloud video or run its smart alerts without Arlo Secure and has no microSD fallback.

Who should buy the Aqara Smart Video Doorbell G4?

Apple households wanting a subscription-free HomeKit Secure Video doorbell with free local recording and extras like custom ringtones and automatic replies. It is the fee-free choice.

Who should buy the Arlo Video Doorbell 2K (2nd gen)?

US buyers in the Arlo ecosystem who want a sharp 2K square head-to-toe view and accurate person/package/vehicle detection and are fine paying for Arlo Secure. Note it does not work in many countries outside the US and has no local storage.

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