Updated September 30, 2026 · SmartHomeCue Editorial Team
Cove vs SONOFF
Where Cove and SONOFF differ
| Compare |  Cove |  SONOFF |
|---|---|---|
| Price | $0 | €20.47 |
| Products | Alarm, Camera, Smoke alarm, Video doorbellCovers more | Camera, Alarm |
| Professional monitoring | YesHas it | No |
| Money-back period | 60 daysHigher | 30 days |
| Top resolution | 2k | 4k |
| Recording retention | 30 days | 90 daysHigher |
| Monitoring per month | $20.10 to $39.90 | Not confirmed |
| Cloud plan per month | $30 | Not confirmed |
| Free features | Not confirmed | 1080P live view, free motion detection push alerts, local microSD (TF) recording up to 128GB, two-way audio, sleep mode, privacy zones and RTSP; CAM-C44HE adds local AI detection and security modes with no monthly fee |
| Installation required | No | Not confirmed |
| Monitoring countries | United States | Not confirmed |
Same on both: Minimum contract (0 months), Local storage (Yes).
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Key differences
- SONOFF scores higher overall: 9.4 vs 9.1.
- Products: only Cove offers Smoke alarm, Video doorbell.
- Professional monitoring: only Cove.
- Recording retention is higher at SONOFF: 90 days vs 30 days.
- Support channels: only Cove offers Chat, Phone.
- Money-back period is higher at Cove: 60 days vs 30 days.
- SONOFF is available in 28 more countries.
- Pricing model: only Cove offers Monitored.
- Power source: only Cove offers Battery, Solar.
Our verdict on each
Cove
Cove suits US homeowners who want a single system covering cameras, a video doorbell and smoke alarms without a fixed contract term. Hardware is listed at $0, while adding professional monitoring runs the monthly fee to $20.10 to $39.90, so the outlay depends on whether you want an alarm answered day or night.
SONOFF
SONOFF suits people building a wired or Zigbee home on a tight budget who want cameras and climate gear that keep working without a subscription. Entry costs start at €6.16, the range is Matter certified, and local storage holds recordings for 90 days. The catch is support, which runs on email and help centre only.
Score breakdown
| Area | Cove | SONOFF |
|---|---|---|
| Cost | 8.9Hardware is listed at $0, monitoring fees run $20.10 to $39.90 a month and contract months are 0 months. | 9.9HigherEntry price runs €6.16 and a camera sits at €20.47, with monitoring and contracts at 0 months, well under the €61.38 typical band. |
| Offer | 9.3HigherProduct types span alarm, camera and smoke alarm, so alarms, cameras, a video doorbell and smoke alarms come from one maker. | 9.0Free features cover local AI detection, privacy zones and RTSP, and energy reporting is included. |
| Trust | 9.0Founded in 2018, run by Cove Smart, LLC in US, with a 60 day money back window. | 9.1Higher2 years of cover, local storage as standard, and support limited to email and help centre, which is thinner than most rivals. |
How they place
| Ranking | Cove | SONOFF |
|---|---|---|
| Home security cameras | 28 of 75 | 15 of 75 |
| Security cameras without a subscription | 18 of 53 | 9 of 53 |
| Home alarm systems | 13 of 33 | 7 of 33 |
Also worth a look
AOSU has recording retention at 120 days, against 30 days for Cove and 90 days for SONOFF.
AOSU reviewWhere these facts come from
Cove
- covesmart.com: 18 facts, checked September 30, 2026
SONOFF
- sonoff.tech: 15 facts, checked September 30, 2026
Every fact side by side
| Fact | Cove | SONOFF |
|---|---|---|
| Pricing model | Diy, MonitoredCovers more | Diy |
| Power source | Battery, Solar, WiredCovers more | Wired |
| Ecosystems | Not confirmed | Alexa, Google, Homekit, Matter, Smartthings |
| Legal entity | Cove Smart, LLC | Shenzhen Sonoff Technologies Co.,Ltd |
| Headquarters | United States | China |
| Founded | 2018 | Not confirmed |
| Support channels | Chat, Email, Help centre, PhoneCovers more | Email, Help centre |
Where each stands against the rest
| Fact | Cove | SONOFF | Median |
|---|---|---|---|
| Monitoring per month | $20.10 to $39.90highest quarter | Not confirmed | $0 |
| Minimum contract | 0 monthsat the median | 0 monthsat the median | 0 months |
| Money-back period | 60 dayshighest quarter | 30 daysat the median | 30 days |
| Cloud plan per month | $30highest quarter | Not confirmed | $3 |
| Recording retention | 30 daysat the median | 90 dayshighest quarter | 30 days |
Median across 65 listed brands.
Pros and cons
Cove
Pros
- Hardware is listed at $0 on the Cove DIY plan, well under the $19.99 entry price at Annke.
- The monitored plan carries contract months of 0 months, so no minimum term stands in the way of moving provider.
- Local storage is supported and clip retention runs 30 days, so footage does not depend on a subscription alone.
Cons
- Monitoring is not free once you want an alarm answered: fees run $20.10 to $39.90 a month.
- Monitoring covers US, so the professional tier does not stretch beyond a single market.
- Cameras top out at 2k, below the sharpest kits in the category, so higher resolution buyers look elsewhere.
SONOFF
Pros
- Matter certified gear across thermostat, trv and lighting, covering matter, thread and zigbee so it fits most existing setups
- Entry prices from €6.16 and cameras from €20.47
- Free features include local AI detection, security modes, privacy zones and RTSP with no monthly fee
Cons
- Professional monitoring is not offered, so alarms stay self-served
- A hub is required for the Zigbee thermostat, adding cost to a heating setup
- Support runs on email and help centre only, with no phone or live chat line
Who each suits
Cove
Who it suits
- US buyers who want cameras, a video doorbell, an alarm panel and smoke alarms from one maker across alarm, camera and smoke alarm.
- Renters and flat owners who want local storage and 30 days of clips without a fixed term.
- Households that plan ahead, since the money back window is 60 days from the point of purchase.
Who should look elsewhere
- Buyers outside the US, since Cove's monitoring covers US while Aqara lists cameras at £36.98 in pounds for UK shoppers.
- Shoppers after a single piece rather than a system: The Home Security Superstore lists items from $13.95.
- Camera-only buyers, since Annke lists cameras at $19.99 and Cove adds a cloud plan at $30 a month on top.
SONOFF
Who it suits
- Renters and homeowners who already run a Matter or Zigbee home
- People who want camera recording on a card rather than a cloud subscription
- Builders covering lighting, plugs, sensors, blinds and climate from one maker
Who should look elsewhere
- Anyone who wants professional alarm monitoring, which Sonoff does not sell
- Households on Z-Wave, a protocol outside the matter, thread and zigbee list
- Buyers who want phone or chat support, since email and help centre is the limit
Current offers
Cove
SONOFF
Current offer
Discount code
10% OFF your first order for newsletter subscribers: 10% off first order
Email newsletter signup; valid for 30 days; one-time use per customer; cannot be combined with other offers
Source, checked September 30, 2026
Country by country
| Country | Cove | SONOFF |
|---|---|---|
| Austria | No | Yes |
| Belgium | No | Yes |
| Bulgaria | No | Yes |
| Croatia | No | Yes |
| Cyprus | No | Yes |
| Czechia | No | Yes |
| Denmark | No | Yes |
| Estonia | No | Yes |
8 of 29 countries where either is available.
Questions about each
Cove
How much does a Cove security system cost to start?+
The Cove DIY plan is listed at $0, so the hardware is free to buy. The costs arrive after that: professional monitoring is $20.10 to $39.90 a month, and cloud storage is $30 a month. Buyers should treat the entry price as the cheap part and budget for those recurring lines.
Is there a contract or minimum term on the Cove monitored plan?+
Contract months are 0 months on the monitored plan, so there is no minimum term to serve. Cove ranks 1 of 60 brands on that measure. Where most monitored alarms lock a household into a term, Cove asks for none here, which keeps switching costs low.
SONOFF
What does SONOFF hardware cost to get started?+
Entry prices run €6.16 across the range, and a security camera starts at €20.47. There is no separate hardware bundle to buy, so the outlay is the device itself plus a hub if the product needs one.
Is there a monthly subscription or contract?+
No. Contract length is 0 months, and local card recording, AI detection, privacy zones and RTSP are listed as free features. The dual-lens hub camera adds local AI detection and security modes with no monthly fee attached.