SmartSlydr Regal is a customized version of the standard SmartSlydr, made to fit your specific sliding door or window.

Key features of SmartSlydr Regal:
✔ Custom fit: built to match your door's full length (up to 71 inches) for a built-in look
✔ Quieter, smoother operation: an upgraded motor (about 48 dB vs. 55 dB for the standard model)
✔ Supports outside-moving panels: custom adapters for special door setups

What's the same: both models open up to 48 inches (~4 ft) at the same speed, with the same app, voice and accessory features.

Black version: launching in about 3–4 months.

If you want a custom-sized, quieter or fully tailored opener, choose SmartSlydr Regal.

Total door width: measure the frame edge to edge as precisely as possible. We custom-cut the channel to this length.
Moving panel width: an approximate measurement is fine.

SmartSlydr's AI calibration learns the exact opening and closing points after installation. For doors wider than 71 inches, the Regal unit stays 71 inches long and still opens up to 48 inches.

Both are the same device but marketed for different use cases:

✅ SmartSlydr – Designed for smart home automation and accessibility, integrating with Alexa, Google Assistant, and Apple Watch to enhance convenience for all users, including individuals with disabilities.
✅ SmartSlydr Pet Door – Focuses on its use as a smart pet door, featuring PetPass and DuoButton for pet-friendly access, allowing dogs and cats to enter and exit independently.

You need one PetPass tag per pet.

✔ Each SmartSlydr supports up to 4 PetPass tags and 2 OneButton/DuoButton remotes.
✔ With DuoMotionX, up to 6 PetPass tags are supported.

You can set the opening width and auto-close timer for each pet in the app.

PetPass / OneButton is the same small tag, set up in the app to work in one of two modes at a time:
• PetPass Mode: for pets. Opens and closes the door automatically, based on signal strength, when your pet waits near the door. Hands-free access for your dog.
• OneButton Mode: for people. Works as a remote that opens and closes the door when pressed. It's small enough to carry in a pocket or on a keychain, or attach to a walker or wheelchair. Its button is a little hard to press.

DuoButton is a bigger press button that mounts next to the door. It's easier to press than the OneButton tag, for both people and pets. It has two modes, one at a time:
• OneButton Mode: works as a remote that opens the door when pressed.
• PetPass Hub Mode: a secure press button for your pet. The door opens only when a pet wearing its PetPass tag presses the button.

DuoMotionX is a motion sensor with a built-in button and four modes:
• Pet Only: opens only when it detects motion and a PetPass tag at the same time.
• Pet + People: your pet gets in with motion plus their PetPass tag; people press the button.
• Press Button: opens only when the button is pressed. Motion does nothing.
• All Motion: any motion or a button press opens the door.

Yes. For your pet to go out and come back in on their own, mount one inside and one outside.

PetPass, OneButton, DuoButton and DuoMotionX are all water-resistant. For security, any tag or button can be turned off in the LycheeThings app, for example at night or while you're away.

Yes. The opening width is adjustable, so there is no size or weight limit. The small collar strap fits collars up to 1.5 inches wide.

Yes! SmartSlydr is designed for standard horizontal sliding doors and can automate the first moving panel of a 3-panel sliding door.

✅ Supports One Moving Panel – SmartSlydr automates a single sliding panel in your 3-panel door configuration.
✅ Maximum Opening Width: 48 Inches (~4 ft) – The device can open the door up to 48 inches (~4 ft) wide for convenient access.

If you're unsure about compatibility, feel free to send pictures of your door setup to communication@lycheethings.com. Our team is happy to assist!

For more details, refer to our in-depth compatibility guide.

Yes! SmartSlydr is designed for standard horizontal sliding doors and can automate a single or double moving panel in a 4-panel sliding door setup.

✅ Supports One Moving Panel – A single SmartSlydr can automate one sliding panel in a 4-panel door configuration.
✅ Automate Two Moving Panels – If you want to automate two moving panels, you will need two SmartSlydr devices.
✅ Maximum Opening Width: 48 Inches (~4 ft) – Each SmartSlydr can open the door up to 48 inches (~4 ft) wide for convenient access.

If you're unsure about compatibility, feel free to send pictures of your door setup to communication@lycheethings.com. Our team is happy to assist!

For more details, refer to our in-depth compatibility guide.

No. SmartSlydr works only with horizontal sliding doors and windows.

Yes. For a full opening, remove the pet-door insert first.

SmartSlydr is designed to work with sliding doors that move smoothly, regardless of their weight. The key factor is how easily your door slides. If you can open your door with one hand, SmartSlydr should work seamlessly for you.

SmartSlydr includes a quick cleaning and lubrication kit to help ensure smooth operation. Many heavy doors simply need a bit of cleaning and lubrication for optimal performance.

For reference, SmartSlydr can handle doors with up to 18 lbs of drag force, while most well-maintained doors with clean tracks typically require only 5–10 lbs of force. For more information, check out our YouTube video.

The standard SmartSlydr operates at approximately 55±3 dB from a 1-meter distance, while the SmartSlydr Regal features a quieter motor that runs at 48±3 dB. The actual noise level you experience may vary based on factors such as door condition, room size, and ceiling height.

Yes, SmartSlydr works with most blinds, shades, shade boxes and valances, as long as there's enough space. The unit is 2 inches wide, but we recommend at least 5 inches of clearance between the door frame and the blinds or shade. If you need more room, blind extender brackets can move the blinds or shade outward so SmartSlydr fits.

SmartSlydr dimensions (W × H × L):
• Small: 2 in × 3.34 in × 37 in
• Medium: 2 in × 3.34 in × 54 in
• Large: 2 in × 3.34 in × 66 in

For step-by-step instructions, see our Installation Guide.

Size refers to your door, not your dog. Every size works for any size pet, because the opening width is adjustable.

Each size is a different unit length that mounts along the top of your door, and each gives a different maximum opening:

Size	Unit length	Maximum opening
Small	37 in	Up to 20 in
Medium	54 in	Up to 36 in (~3 ft)
Large	66 in	Up to 48 in (~4 ft)
Regal	Custom, up to 71 in	Up to 48 in (~4 ft)

Measure your door and compare it with our Size Chart, which shows exactly where to measure. If your door falls between sizes, or you'd like us to check, email photos of your door and your measurements to communication@lycheethings.com. We'll confirm the right size before you order.

Stand inside your home, facing the door. With the door closed, look at which side the moving panel is on — that's your closing side.

• Moving panel on the left → choose Left Closing
• Moving panel on the right → choose Right Closing

Quick double-check: the handle. The handle sits on the moving panel's outer edge, the one that meets the frame when the door shuts — so it will be on the same side. Handle on the left means Left Closing, handle on the right means Right Closing. If the panel and the handle both point the same way, you have your answer.

Our Size Chart shows both configurations side by side — compare the diagrams against your door to confirm before you order.

Still unsure? Take a photo from inside showing the full door and send it to communication@lycheethings.com. We'll confirm in a few minutes — worth doing, since the wrong direction won't fit your door.

In most cases, yes. SmartSlydr mounts with two brackets and needs a flat, consistent surface to sit against — flat trim is usually no problem. Curved or angled molding may need a shim or spacer so the unit sits level.

Trim profiles vary widely, so send a photo of your door frame including the trim to communication@lycheethings.com and we'll tell you whether anything extra is needed before you order.

Yes. The unit mounts inside your home, and customers use it in places like Alaska and the Northeast. Keep snow and ice out of the door track so the door slides freely.

Not yet. SmartSlydr is currently available in white. A black version is launching in about 3–4 months.

Stand inside your home, facing the door. Sliding doors run on two tracks, one nearer to you and one farther away. Check which track your moving panel sits on:
• Nearer track (closest to the inside of your home) → inside moving panel
• Farther track (closest to the outside) → outside moving panel

Quick check: as the door opens, does the moving panel slide in front of the fixed panel (toward you) or behind it (away from you)? In front means inside; behind means outside. Our Size Chart shows both in a diagram.

Which model you need:
• Inside moving panel: both the standard SmartSlydr and SmartSlydr Regal work. Choose Regal if you want the quieter motor and custom length.
• Outside moving panel: SmartSlydr Regal only. It includes the custom adapter this setup needs. See our step-by-step outside-panel installation guide.

Still unsure? Send a photo taken from inside your home to communication@lycheethings.com and we'll confirm the right model.

Every SmartSlydr package includes:
• SmartSlydr device
• Power supply
• All necessary installation accessories

Out of the box, you can control your sliding door with:
✅ Mobile App ✅ Alexa ✅ Google Home ✅ Apple Watch

PetPass tags, OneButton and DuoButton remotes are not included; they're optional add-ons. On the Smart Pet Door or SmartSlydr Door/Window page, choose the opener for your door type, then add the accessories you need. Everything in the same order ships together.

No special tools or professional assistance are required! Thanks to our patented custom design, installing SmartSlydr is as simple as installing blinds or shades.

Easy Installation – SmartSlydr attaches using two brackets, requiring only a screwdriver for setup.
Corner Cap Attachment – The corner cap sticks to the moving door/window panel and connects to SmartSlydr for smooth operation.
Handyman-Friendly – If you prefer assistance, any handyman can easily install it.

For step-by-step guidance, refer to our installation guide or video tutorials.

The two metal brackets screw into the frame or wall above the door. The corner cap on the moving door panel can be screwed on or attached with adhesive.

If you can't use screws, we can make a larger-surface corner cap with stronger adhesive. Email a photo of your door to communication@lycheethings.com for custom corner cap support.

We don't have our own installers, but any handyman can install SmartSlydr. You can also book an installer through our TaskRabbit partnership. See SmartSlydr Installation Options.

Yes. See our Installation Guide for step-by-step instructions, and our Reviews page for real customer videos.

For sliding doors: top mount only. Sliding doors are top mount only — a bottom-mounted unit would sit in the threshold you walk through and create a tripping hazard.

For windows: top or bottom. Sliding windows can be fitted either way, depending on which gives better clearance.

Not sure which applies to your setup? Email photos to communication@lycheethings.com and we'll advise.

SmartSlydr Regal is custom-built and takes up to 1 week to make before it ships.

SmartSlydr is sold online only at lycheethings.com and ships from Fremont, CA.

No electrician or wiring is needed. SmartSlydr plugs into a standard household outlet with the included power supply.
• Input: 110–240V AC (standard wall outlet)
• Output: 24V DC, 1.5A
• Cord length: 8 ft. Need more reach? An 8 ft DC extension cord is sold separately. Cord clips are included to route the cord neatly.
• Hardwiring or batteries: not supported. SmartSlydr runs only from the plug-in power supply.

Where the power supply goes depends on which track your moving panel uses:
• Inside moving panel (SmartSlydr & SmartSlydr Regal): the power supply is on the side opposite the moving panel. Moving panel on the left → power on the right, and vice versa.
• Outside moving panel (SmartSlydr Regal): the power supply is on the same side as the moving panel. Moving panel on the left → power on the left, and vice versa.

From inside: use Alexa or Google Home voice commands, a DuoButton, a OneButton, the LycheeThings app or Apple Watch. You can also pull the release cord to open the door by hand.
From outside: carry a OneButton, use the app or Apple Watch, or mount a DuoButton outside if you have a secure yard.

Yes. Set the auto-close timer and opening width in the LycheeThings app. Both can be set separately for each pet.

Yes. PetPass works from both sides of the door.

It can. To prevent this, you can:
• Turn off a tag in the app
• Use Send Request Mode, so you approve each opening
• Switch to a DuoButton that your dog presses
• Use DuoMotionX in Pet Only mode, which opens only when your pet is within 2–3 ft of the door and wearing their tag

PetPass offers two modes for controlling the SmartSlydr door: Automatic Mode and Send Request Mode. You can only use one mode at a time, and both are customizable via the mobile app.

Automatic Mode: This mode enables automatic opening and closing based on your pet's proximity to the door. When your pet is near, the door will open automatically and you will get a notification.

Send Request Mode: In this mode, when your pet approaches the door, you will receive a smartphone notification to approve or deny the door opening. This gives you more control over when the door opens.

Both modes are designed to offer flexibility, depending on your preferences for convenience or control.

SmartSlydr includes a convenient pull cord feature that allows you to detach the device from the window panel for manual operation. This feature works similarly to a garage door opener, making it especially useful in emergency situations or when manual operation is needed.

Once manual operation is complete, the SmartSlydr head will automatically reattach to the door. If you prefer to prevent the automatic reattachment, you can use the pull cord fork to securely hold it in place.

SmartSlydr doesn't need a hub or any other device. You only need a stable 2.4 GHz Wi-Fi network and a smartphone with the LycheeThings app. SmartSlydr connects to your home Wi-Fi and securely to our cloud, which runs app and voice control (Alexa and Google Home).

An API is available on request: message us or email communication@lycheethings.com. Some customers already use SmartSlydr with Home Assistant.

Yes. Sign in to the LycheeThings app on each phone using the same account.

Yes.
• Turn access on or off anytime: in the LycheeThings app, you can turn each PetPass tag or OneButton remote on or off.
• Set a schedule: use routines in the Alexa app to open or close the door at set times, or to turn PetPass on or off on a schedule. You only need the free Alexa app, not an Alexa speaker.

Schedules are useful for airing out your home in the morning or making sure the door stays closed while you sleep. You can set daily or custom schedules. For setup steps, see SmartSlydr Voice Control & Automations.

SmartSlydr moves the door or window at about 45 mm per second. How long it takes to open depends on how far you set it to open (1% to 100%): the wider the opening, the longer it takes. The speed is fixed for safety and can't be changed, but you can change how far the door opens.

Yes. With the app or a voice command, you can open the door or window anywhere from 1% to 100%, in 1% steps, up to the maximum opening of 48 inches (~4 ft). For example, say "Set the door to 20%." Use a narrow opening for your pet and a full opening when people need to walk through.

SmartSlydr consumes less than 1kW for the whole year, based on average daily usage. This totals less than 1 hour of air conditioner electricity consumption — every minute past that is pure savings if you're using SmartSlydr to let in fresh air!

Yes, SmartSlydr is designed with safety in mind, incorporating a safety feature similar to the anti-pinch mechanism found in car power windows.

If an object is pinched during door operation: the door will retract and attempt to close again. If the obstruction persists, the door will retract once more, remain open, and send a notification to your mobile app about the obstruction.

For a demonstration of this feature, check out our Safety Feature Video, where we use a banana as an example.

Yes. Leave your door's latch unlocked. SmartSlydr's mechanism locks the door when it's closed. If your door handle locks automatically, a child-lock clip can hold it in the unlocked position. Contact us at communication@lycheethings.com for options.

SmartSlydr's internal mechanism acts as the lock — when the door closes, it's secured automatically, with nothing to press or remember. The door can't be pushed or slid open by hand from either side, and opens only via the app, a voice command, a remote, or an authorized PetPass tag. Unlike a flap door, there's no opening for a person or animal to force through.

From inside, the manual release cord lets you open the door by hand at any time, including during a power outage.

Every SmartSlydr includes a 1-year limited warranty covering defects in materials and workmanship under normal use starting from the date you receive it.

If a covered defect occurs, we'll repair your device with new or refurbished parts, or replace it with a refurbished device of equal or better functionality. You cover shipping to us; we cover standard shipping back to you.

The warranty applies to the original purchaser and isn't transferable. Full details: Warranty & Return Policy

Yes. At checkout you can upgrade to 2-year or 3-year total coverage. Extended warranties provide the same coverage as the standard warranty and must be purchased with a new device — they can't be added later.

If you return your device within the 30-day window, the extended warranty is cancelled and refunded with it. After 30 days it's non-refundable. See Warranty & Return Policy

Yes. You can return any purchase within 30 days of receipt. See our Return Policy.

Check fit before you order. It's free and takes a few minutes. Email photos of your door setup to communication@lycheethings.com, and we'll confirm compatibility and tell you which model you need. You can also use our Compatibility Guide and the size chart on each product page. If you're unsure about your panel configuration, blinds clearance or an unusual track, ask us first.

You can use your own carrier, or we can provide a prepaid return label ($25 is deducted from your refund). Refunds go to your original payment method within 5–8 business days after we receive the return.

Yes — anytime before it ships. Email communication@lycheethings.com and we'll issue a full refund, minus third-party payment processing fees. Once an order has shipped, our return policy applies instead.

Yes, as long as the order hasn't shipped yet. Message us with your order number and we'll update it.

SmartSlydr currently ships within the United States only, due to the logistics of international shipping. If you're outside the US, you can ship to a friend or family member in the US and forward it from there.

All orders ship from Fremont, CA.
• Standard (USPS Ground Advantage): about 8–10 business days after the order ships
• USPS Priority: about 2–5 business days
• Faster delivery: choose a UPS expedited option at checkout

Shipping cost depends on your ZIP code and is shown at checkout. Accessories in the same order ship together in one package.

Yes, we run offers from time to time, including holiday sales. To get the current discount code, sign up for our newsletter at the bottom of any page on our website. We'll email you the active offer, plus future deals and product news.

Yes. SmartSlydr mounts to your existing door frame with brackets and requires no cutting or permanent modification, so you can remove it and reinstall it at your next home for the door with the same configuration.