The catch
Ring Alarm 5-Piece Kit
Two separate openings are more than its one contact sensor can cover.
Side by side
SimpliSafe 5-Piece is the choice when two openings need their own contact sensors right away. Ring Alarm 5-Piece is the choice when one opening is enough and the household already uses Ring devices and its app. A keypad and a motion detector come in both, but the fifth piece is a range extender for Ring and a second entry sensor for SimpliSafe. Budget for remote features according to the current plan.
Before you buy
SimpliSafe's exact five-piece kit supplies both entry sensors for an apartment with a front door and an accessible window that each need an opening alert. Ring supplies one, so meeting that same brief takes another compatible contact sensor.
Where this comes from
Two independent opening sensors are required in this scenario. SimpliSafe includes two, Ring includes one. Motion detection and contact detection are different inputs.
The catch
Two separate openings are more than its one contact sensor can cover.
The catch
Running it next to Ring cameras brings in another system and app.


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The Ring Alarm and SimpliSafe five-piece kits differ on covering an apartment door and window, working with existing Ring devices and what monitoring plans require.
SimpliSafe 5-Piece is the choice when two openings need their own contact sensors right away. Ring Alarm 5-Piece is the choice when one opening is enough and the household already uses Ring devices and its app. A keypad and a motion detector come in both, but the fifth piece is a range extender for Ring and a second entry sensor for SimpliSafe. Budget for remote features according to the current plan.
Which one fits
An additional contact sensor is needed with Ring.
SimpliSafe runs on its own system and app.
A physical keypad comes in both exact kits.
An eligible active service and enrollment are required for monitoring.
In practice
SimpliSafe's exact five-piece kit supplies both entry sensors for an apartment with a front door and an accessible window that each need an opening alert. Ring supplies one, so meeting that same brief takes another compatible contact sensor.
Two independent opening sensors are required in this scenario. SimpliSafe includes two, Ring includes one. Motion detection and contact detection are different inputs.
If a household already uses Ring cameras, it may prefer to add the Ring alarm to the app it knows. That convenience is a valid reason to choose Ring, provided the sensor count fits.
Ring devices can be managed in the Ring app, but remote alarm arming and backup features depend on an eligible plan. Check exact eligibility on any subscription you already have.
Because Ring requires payment for remote arming and SimpliSafe currently requires payment for push alerts, the ongoing feature list is part of what you are buying. Neither kit on its own establishes free professional response.
The listed remote functions are defined by current official plan and support pages. The comparison assumes no fixed monthly price.

Ring, 2nd Gen
Ring’s compact starter gives you one entry sensor, one motion detector and a range extender.

SimpliSafe, SS3-AMZ-1
This lean SimpliSafe kit keeps alarm coverage straightforward, with two entry sensors and one motion sensor.
Spec by spec
| Spec | Ring Alarm 5-Piece Kit | SimpliSafe 5-Piece Wireless Home Security System | In practice |
|---|---|---|---|
| Entry sensors | One contact sensor | Two entry sensors | Two physical contact sensors are needed for a door and a separate opening. |
| Motion detector | One included | One included | What this gives you is a shared capability and not a second opening contact sensor. |
| Other included pieces | Base station, keypad and range extender | Base station and keypad | Hardware is allocated differently within the same five-piece count. |
| Remote service checks | Paid plan needed for remote app arming | Current support requires active monitoring subscription for push alerts | Look at the exact functions you need and not only whether the kit advertises no contract. |
| Device ecosystem | Ring app for Ring devices | SimpliSafe app for SimpliSafe system | Having a camera account already does not bring the other brand into the same system. |
Trade-offs
Change of plan
Go with SimpliSafe 5-Piece Wireless Home Security System. Two entry sensors come in the SimpliSafe box.
Go with Ring Alarm 5-Piece Kit. With Ring those devices stay in the same app, and the specified starter hardware is included.
Decision guide
SimpliSafe 5-Piece fits when two openings each need their own contact sensor from the first day.
Say the apartment has a front door and an accessible window, and each needs an opening alert. SimpliSafe’s exact five-piece kit includes both entry sensors. Ring includes one, so meeting that same brief means buying another compatible contact sensor. SimpliSafe is the choice for that out-of-box layout. Ring is the choice when only one opening needs contact monitoring and the included extender proves useful after a proper range check. A motion detector cannot tell you whether the second opening is open or closed.
A household that already uses Ring cameras may like the idea of adding the Ring alarm to the app it knows. That convenience is a valid reason to pick Ring when the sensor count fits. It does not show that the current camera plan covers every alarm feature, so check remote arming, cellular backup and professional monitoring separately. SimpliSafe is the better choice when its kit layout fits better and a second app is acceptable.
Ring requires payment for remote arming, and SimpliSafe currently requires payment for push alerts, so the ongoing feature list is part of what you are buying. Neither kit by itself gives you free professional response. Decide which sensors the apartment needs first, then compare the service tier you select.
By the numbers
What we found across the home security systems we compare, plus the checked facts behind each finding.
| Product | Needs it meets | Facts we checked | Sources |
|---|---|---|---|
| Ring Alarm 5-Piece Kit |
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| SimpliSafe 5-Piece Wireless Home Security System |
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Ready to buy
Open either model on Amazon for the current price, customer reviews and delivery options.

Have the alarm sit with your existing Ring devices in one app
See price & reviews on Amazon
Watch both an apartment door and a window using the box alone
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