Best Deadbolt Lock Deals & Amazon Promo Codes

Updated Sunday, November 8, 2026 · 2 deals · newest first. Tap a code to copy it, then open the deal for how to apply it.

A deadbolt lock adds a solid bolt that slides deep into the door frame, and a smart deadbolt adds keyless ways to open it, such as a fingerprint, a keypad code, a key card or a phone app, which makes it a popular front-door upgrade for busy households. This hub collects deadbolt lock deals on two smart models: a Philips Wi-Fi deadbolt with code, fingerprint and app unlock, voice assistant support, auto lock and a backlit touchscreen, and a Lockly Secure Plus deadbolt with RFID and fingerprint entry. Each deal lists its promo code or clip coupon on the grid. Before you buy, measure your door's thickness and the backset, the distance from the door edge to the center of the existing hole, and compare them with the fit details on the listing.

Today's top deadbolt lock deals

Lockly Secure Plus RFID Smart Deadbolt Lock

Deal

Philips Wi-Fi Smart Deadbolt Lock

Deal

Best Deadbolt Lock: video guide

Hand-picked YouTube reviews and buying guides for deadbolt lock – watch before you pick a deal.

Philips Wi-Fi Smart Door Lock Deadbolt with Handle Set Review – by Pixel Review on YouTube. We are not affiliated with the channel.

🔒 Fingerprint, RFID, & PIN?! Lockly Secure Plus Smart Lock Review – DedieMoon

Before You Buy a Deadbolt Lock

A deadbolt is only as good as its fit and the door it is installed on, so start with compatibility. Then decide how you want to get in. Traditional keyed deadbolts are simple and need no batteries. Smart deadbolts add keyless options and remote features, but they rely on batteries, apps and sometimes Wi-Fi, so you take on a little maintenance in exchange for convenience.

The deciding factors for a smart model are the entry methods you will actually use, how it connects to your phone, how it is powered and what backup options exist if the batteries run low.

Smart Deadbolt Lock Types on This Hub

Wi-Fi smart deadbolts

The Philips model lists built-in Wi-Fi, which allows remote access from the app without a separate hub. It offers code, fingerprint and app unlocking, auto lock, a backlit touchscreen and voice control through Alexa and Google Assistant.

RFID and fingerprint smart deadbolts

The Lockly Secure Plus combines a fingerprint reader with RFID entry, so you can unlock with an enrolled finger or a key card or fob. Check the product page for app features, connectivity and what is in the box.

Traditional keyed deadbolts

Not on the hub today, but worth knowing: single-cylinder deadbolts use a key outside and a thumb turn inside. Double-cylinder versions need a key on both sides, which can slow an emergency exit, so check local codes before choosing one.

Type	Best for	What to check
Wi-Fi smart deadbolt	Remote access and voice control	Wi-Fi band, app features, battery life
RFID and fingerprint deadbolt	Fast keyless entry for families	Number of users, cards included, backup key
Single-cylinder keyed	Simple, battery-free security	Grade, strike plate, key type

Door Fit and Specs to Confirm

Door thickness. Many residential deadbolts fit doors about 1-3/8 to 1-3/4 inches thick. Check the listed range.
Backset. Common US backsets are 2-3/8 or 2-3/4 inches. Most smart locks support both, but confirm.
Bore hole. Standard prep is a 2-1/8 inch hole through the face of the door; a different size may need extra work.
Entry methods. Count what you will use: code, fingerprint, RFID card, app, voice or key.
Connectivity. Note whether it uses built-in Wi-Fi, Bluetooth or a bridge, and which Wi-Fi band it needs.
Power and backup. Check the battery type, low-battery alerts and whether there is a physical key or emergency power option.
Security rating. If the listing names an ANSI/BHMA grade, note it; if not, do not assume one.

Installation and Security Tips

Before installing, make sure the existing bolt slides fully into the frame without pushing or lifting the door. A smart lock motor can struggle and drain batteries if the bolt rubs. If your door sticks, adjust the hinges or strike first.

Use longer screws in the strike plate so they reach the wall framing behind the door jamb; this strengthens the frame against forced entry. Follow the manufacturer's instructions, and if you rent, check your lease and talk with your landlord before changing a lock.

In the app, set a strong account password, turn on two-factor sign-in if offered, and use temporary or scheduled codes for guests instead of sharing your own. If you enable voice unlocking, set up the voice PIN the assistant asks for. Replace batteries when the low-battery alert appears, and keep a backup key somewhere safe.

Smart Lock Sale Timing

Smart home devices see their biggest promotions around Black Friday on November 27, 2026 and Cyber Monday on November 30, 2026, and again in spring home-improvement season. The two locks on this hub list under $225.

Clip any coupon on the product page, then enter the seller's promo code in the promotional code box at checkout or use the deal link. Locks often come in several finishes, so choose yours first, since a code may cover one option only, and confirm the cart total.

Deadbolt Lock Buying Mistakes

Skipping door measurements before ordering.
Installing on a door where the bolt does not line up cleanly.
Choosing Wi-Fi features without checking your router's band.
Ignoring backup entry options when batteries run low.
Sharing a master code instead of guest codes.
Leaving the short factory screws in the strike plate.

How to use an Amazon promo code

Open the deal and tap Get this deal on Amazon – it opens the exact listing the code was issued for.
Pick the size or color the code covers and add it to your cart.
Paste the code into Gift card or promotion code at checkout, tap Apply, and check the discount in the order total.

Frequently asked questions

Will a smart deadbolt fit my door?

Most smart deadbolts are designed for standard US door prep, but always confirm. Measure the door thickness, the backset from the door edge to the center of the hole, and the bore hole diameter, then compare them with the fit details on the listing. Many residential doors are 1-3/8 to 1-3/4 inches thick with a 2-3/8 or 2-3/4 inch backset and a 2-1/8 inch bore.

What happens if a smart lock battery dies?

Most smart locks warn you with low-battery alerts well before they stop working, so replace batteries when the alert appears. If the battery does run out, you typically need a backup method, such as a physical key or an emergency power option, depending on the model. Check the listing and manual for the Philips or Lockly lock you choose to see which backup it offers.

Is a Wi-Fi smart lock less secure than a keyed deadbolt?

Not inherently, but it adds digital security to think about alongside physical strength. Use a strong account password, enable two-factor sign-in if offered, keep the app and lock firmware updated, and share temporary guest codes instead of your own. Physical installation matters just as much, including a well-aligned bolt and long strike plate screws.

Which smart deadbolt is best for families?

For families, a deadbolt with several personal entry methods tends to work best, so kids and adults are not sharing one code. Fingerprint readers, like those on both locks here, let each person enroll their own finger, and the Lockly Secure Plus adds RFID cards. If you want remote access and voice control, the Philips Wi-Fi model lists both.

How do I use a promo code on a deadbolt lock deal on Amazon?

Choose the finish and bundle you want first, since codes can apply to one variant only. Clip any coupon shown on the product page, then enter the code in the promotional code box at checkout or open the deal link, which may apply it automatically. Confirm the final total in your cart, because codes are set by sellers and can end early.

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As an Amazon Associate, AmazonHaul earns from qualifying purchases. Promo codes and coupons are set by sellers, can sell out or end early, and the final price is always the one shown in your Amazon cart.