THE RESEARCH LIBRARY / 2026
Devices, decoded.
21 model-specific research files. What happens to core features without a paid plan, what operates offline, and which questions remain unanswered.
15 DOORBELLS2 CAMERAS4 SMART RINGS0 PHYSICAL TESTS CLAIMED
RESEARCH CATEGORY / DOORBELL
Video doorbells 15
DOORBELL / Ring▣Ring Battery DoorbellLive view stays. Missed footage does not.Plan-dependent↗DOORBELL / Ring▣Ring Battery Doorbell PlusSaved clips depend on an active plan.Plan-dependent↗DOORBELL / Google Nest▣Google Nest Nest Doorbell (battery)Three hours of free event previews.Plan-dependent↗DOORBELL / Google Nest▣Google Nest Nest Doorbell (wired, 2nd gen)Limited included clips; longer history costs extra.Plan-dependent↗DOORBELL / Google Nest▣Google Nest Nest Doorbell (wired, 3rd gen)Six hours of free previews; full archive is paid.Plan-dependent↗DOORBELL / Blink▣Blink Video Doorbell (2nd gen)No plan for clips—if you add local storage hardware.Conditional access↗DOORBELL / Wyze▣Wyze Video Doorbell ProNo microSD slot; cloud recordings depend on service.Plan-dependent↗DOORBELL / Wyze▣Wyze Video Doorbell v2microSD captures video even if Wi-Fi drops.Subscription-free core↗DOORBELL / Reolink▣Reolink Video Doorbell WiFiLocal recording survives an internet outage.Subscription-free core↗DOORBELL / Reolink▣Reolink Video Doorbell PoEWired local recording, including during internet loss.Subscription-free core↗DOORBELL / eufy▣eufy Video Doorbell E340Built-in video storage without a required monthly plan.Subscription-free core↗DOORBELL / eufy▣eufy Video Doorbell C31No plan for local clips; microSD is extra.Subscription-free core↗DOORBELL / Aqara▣Aqara Smart Video Doorbell G4MicroSD lives inside the included indoor chime.Subscription-free core↗DOORBELL / TP-Link Tapo▣TP-Link Tapo Tapo D225Local microSD plus free on-device person alerts.Subscription-free core↗DOORBELL / Ubiquiti▣Ubiquiti G4 Doorbell ProLocal-first, but you need a UniFi Protect console.Conditional access↗
RESEARCH CATEGORY / CAMERA
Security cameras 2
CAMERA / Reolink◉Reolink RLC-810ARecords motion or continuous video to microSD, compatible NVR or FTP server without subscription.Subscription-free core↗CAMERA / eufy◉eufy Indoor Cam E220On-device human/pet/crying detection and video saved to microSD; optional cloud service available.Subscription-free core↗
RESEARCH CATEGORY / WEARABLE
Smart rings 4
WEARABLE / Oura◎Oura Ring 4Three daily scores (Readiness, Activity, Sleep), battery and basic app settings remain; detailed analysis and guidance require membership.Conditional access↗WEARABLE / Oura◎Oura Ring 5According to current Oura membership terms, without active membership only the three daily scores, battery and basic settings remain.Conditional access↗WEARABLE / RingConn◎RingConn Gen 2RingConn advertises sleep, activity and related monitoring with no mandatory monthly membership.Subscription-free core↗WEARABLE / RingConn◎RingConn Gen 2 AirRingConn advertises essential health and sleep insights without an ongoing membership charge.Subscription-free core↗