The High Tech Pet Power Pet WiFi PX2-WIFI is our top pick for large dogs: an app-connected electronic door with 24/7 scheduling built for dogs 30-100 lbs. Compare it against two other picks below, plus what actually matters when you’re choosing a powered door for a big dog.
The best smart dog door for large dogs is the High Tech Pet Power Pet WiFi PX2-WIFI, a WiFi app-controlled door with 24/7 scheduling for dogs 30-100 lbs. If you want the same electronic-key security without the app, the PetSafe Electronic Pet Door is the budget pick at a fraction of the price. And for XL and giant breeds, the PlexiDor Electronic Dog Door handles dogs up to 125 lbs with RFID collar-key entry.
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At a glance: best smart dog doors for large dogs
| Product | Best for | Rating | Price | |
|---|---|---|---|---|
| High Tech Pet Power Pet WiFi PX2-WIFI (Large) | Best overall | ★★★★ 4.4/5 | ~$429.99 | Check Price |
| PetSafe Electronic Pet Door (Large) | Best budget | ★★★★ 4.1/5 | ~$229.95 | Check Price |
| PlexiDor Electronic Dog Door (Large) | Best for XL/giant breeds | ★★★★★ 4.6/5 | ~$589.00 | Check Price |
Prices last verified: July 26, 2026.
Best smart dog doors for large dogs: our top picks
1. High Tech Pet Power Pet WiFi PX2-WIFI (Large) – Best overall
The PX2-WIFI is a pet-operated electronic door built for dogs 30-100 lbs, with a WiFi-connected app layered on top for 24/7 entry and exit scheduling. It’s designed to be air-tight and weatherproof when closed, so you’re not trading convenience for a draftier house.
Why we like it for large dogs
- WiFi app control lets you set and adjust entry/exit schedules remotely, any time of day
- Rated for dogs 30-100 lbs, covering most large breeds without a bulky flap other animals could push through
- Air-tight seal when closed helps limit drafts, a real consideration with a door this size
2. PetSafe Electronic Pet Door, Large – Best budget
PetSafe’s Electronic Pet Door uses a battery-operated collar key sensor rather than an app, which keeps the price well below the WiFi-connected options. It’s rated for dogs up to 100 lbs and supports up to five programmed keys, so it works for multi-dog households too.
Why we like it for large dogs
- Collar key sensor keeps other animals out without needing an app or WiFi connection
- Programmable selective entry/exit with auto-lock, and supports up to 5 keys for multiple dogs
- Rated for dogs up to 100 lbs at roughly a third of the price of app-connected doors
3. PlexiDor Electronic Dog Door, Large – Best for XL and giant breeds
PlexiDor’s Electronic door is built for bigger dogs than most electronic doors handle: up to 125 lbs, with a 12 5/8″ x 19 5/8″ opening. It uses a waterproof RFID collar key rather than a phone app, and the solid composite panel slides up and down like a mini garage door, sealing the opening completely when your dog isn’t using it. This is a premium, professionally-installed option, so budget and installation time accordingly. Get a current quote directly from PlexiDor or an authorized dealer before buying, since pricing varies by series and finish.
Why we like it for large dogs
- Rated up to 125 lbs with a 12 5/8″ x 19 5/8″ opening, more headroom than most electronic doors for giant breeds
- Solid panel seals the opening completely when idle, for better security and insulation than a flap door
- Nationwide network of authorized installers if you’d rather not DIY a wall or door cutout
Buying guide: choosing a smart dog door for a large dog
Weight rating vs. actual opening size
A “large dog” weight rating tells you what the mechanism can handle, not whether your dog will actually fit through comfortably. Measure your dog’s shoulder height and chest width while standing, and check the door’s actual opening dimensions before buying. A door rated for 100 lbs on paper can still feel tight for a broad-chested breed.
Battery collar keys vs. WiFi/app-connected doors
Battery-operated collar key doors are simpler, cheaper, and have fewer parts to troubleshoot, but you lose remote scheduling and phone notifications. App-connected doors let you set exit/entry windows and check activity from your phone, which matters more if your dog’s outdoor access needs to change day to day (boarding a reactive dog away from a new puppy, restricting nighttime access, etc.).
How electronic doors keep other animals out
Unlike a plain flap door, electronic and RFID doors only open for a dog wearing a programmed key or collar tag, so a raccoon, stray cat, or neighborhood dog can’t just push through. This matters more for large doors, since a bigger opening is also a bigger opening for anything else that wants in.
Introducing your dog to a new electronic door
Most dogs need a short adjustment period with a powered door, especially if they’ve only used a manual flap before. A gradual introduction works better than tossing your dog through it on day one:
- Prop the door open and let your dog walk through freely for a few days to get used to the frame and opening.
- Attach the collar key or program the app, then let the door operate with you standing on the other side calling your dog through.
- Use treats to reward each successful pass, gradually stepping back so your dog operates the door independently.
- Build up unsupervised use gradually over several days once your dog is reliably using the door on their own.
FAQ: Smart dog doors for large dogs
Do electronic dog doors work with any collar?
No. Electronic and RFID doors need their own programmed key or sensor attached to your dog’s existing collar. They don’t read standard ID tags or microchips, so you’ll need to attach the manufacturer’s key alongside your dog’s regular collar gear.
Can I install a smart dog door myself?
Door-mounted electronic doors are generally DIY-friendly for anyone comfortable with basic tools. Wall-mounted units, especially through brick, block, or thick exterior walls, typically call for a professional installer. Check the manufacturer’s install guide before deciding.
What happens to a smart dog door during a power outage?
This varies by model, so check the specific door’s manual before you rely on it. Battery-operated collar key doors keep working as long as the batteries hold out; doors that plug into household power may need a battery backup or manual override to function during an outage.
Are electronic dog doors safe from break-ins?
They’re more secure than a plain flap door since they only open for a programmed key or collar tag, and solid-panel designs seal the opening completely when idle. That said, no pet door is a substitute for a proper security system if that’s a real concern for your home.
Written by Sadie Dennis. Sadie researches and writes every guide on RankedShopping, focused on gear that holds up to big, strong dogs
A dog door handles the outside. For zoning the inside of the house, see the best dog gates for large dogs, and the best wireless dog fences if the garden itself is not secure.