Best Discontinued Smart Home Devices to Resell for Profit (2026)

Discontinued smart home devices have a cult following. When a company sunsets a product, owners scramble for replacements, upgrades, or spares—sometimes at crazy markups. I watched a discontinued Logitech Harmony Hub I bought for $30 at a pawn shop go for $160 on eBay, and that’s not even rare. Tech folks hate changing ecosystems, so they’ll pay premium for a familiar device.

Here’s the kicker: these buyers don’t want just any used gadget. They want NIB (new in box) or gently used, full kits with all accessories. That $30 Harmony Hub was complete with remote, so it pulled $130 profit after fees and shipping. A lightly used Nest Secure alarm system I snagged for $75 at a yard sale sold for $344 on Mercari—less than 6 hours after listing.

Watch out for fakes and region-locked gear, though. Google Home Max speakers are notorious for US/EU compatibility quirks. I once bought three for $70 each and only two sold quickly for $220/ea; the third was locked to a Korean account and I had to part it out for $60 (lost almost $30 after shipping/fees). Research model numbers and make sure you can factory reset before buying.

Not all smart home gear is worth flipping. Over the last year, these devices have been my fastest sellers:

• Logitech Harmony Hubs/Remotes: Buy for $30–$60, sell for $140–$220. The Elite and Companion bundles pull even more.
• Nest Secure Alarm Kits: Pick up for $50–$120, resell for $250–$400. Extra sensors add $30–$50 each.
• Google Home Max Speakers: I’ve paid $70–$120, flipped for $200–$250 in less than a week.
• Amazon Echo Show (1st Gen): Found for $20–$40, sold for $90–$130. Sealed units sometimes pull $200 if you wait.
• August Smart Lock Pro (discontinued models): Buy for $40–$80, sold one for $170 on eBay last month.
• Philips Hue Bridge v1: These little white boxes (bought for $5 at Goodwill) sold for $60–$85, mostly to folks with legacy bulbs.

If you’re using DealFlipAI, filter for these brands and keywords. I set alerts for "Harmony Hub" and "Nest Secure" and snagged two deals within a week. Always check completeds on eBay and Mercari so you don’t overpay. Some models tank in value right after discontinuation, but rebound hard after a few months.

Finding these gems is half skill, half hustle. Here’s how I lock down deals fast:

1. Set DealFlipAI alerts with keywords and your zip code. I get pinged the minute a local Harmony pops up.
2. Scour Facebook Marketplace at least twice daily. Early bird gets the worm; I grabbed a Nest Detect for $25 at 6am, flipped it for $90 by lunch.
3. Hit thrift stores and pawn shops weekly. Smart home gear is often mispriced—think $10 for a Philips Hue Bridge.
4. Check eBay sold listings to verify demand and pricing. I never buy unless I see multiple recent sales within the last month.
5. Always ask the seller for a factory reset and a photo of the device powered on. I’ve dodged three bricked Google Home units that way.

When you’re ready to price, undercut stale listings by $5–$10 if you want a fast sale. If you’re not in a rush, price at the high end, but offer quick shipping and post clear, close-up photos. The more complete the kit, the higher the price—missing power adapters or mounting plates can slash value by 50%. I once bought a Hue kit missing two bulbs for $20 and only squeezed $35 out of it.

Every platform has its quirks for smart home flips. Here’s what’s worked for me:

• eBay: Global reach, buyers pay top dollar for NIB or rare models. Fees hit 13–15% plus shipping, but I sold a Logitech Harmony Elite bundle for $299 (bought for $100) in 4 days. Always ship with signature confirmation for anything over $150.
• Mercari: Lower fees (10%) and super-fast cashouts. I sold a Nest Cam IQ for $210 (bought for $65 at Goodwill) in 48 hours. Mercari buyers are less picky about box condition, but you’ll deal with more haggling.
• Facebook Marketplace: No fees if you do local pickup. Perfect for bulky speakers or fragile gear. I moved a Google Home Max for $180 cash (bought for $90) to a local techie—no shipping, no returns.

If you’re flipping high-value or rare gear, eBay almost always wins. For quick flips and low fees, Mercari is gold. If you don’t want shipping drama, Marketplace is the move—but always meet in public. If you’re starting out, list on all three and see where you get bites. I doubled my sell-through mixing platforms last Q4.

Pro tip: Post new listings between 7–9pm local time—highest buyer activity, especially Sundays.

Here’s the exact process I follow when targeting smart home gear:

1. Pick 2–3 target brands or devices (e.g. Nest, Logitech Harmony, Philips Hue).
2. Set up DealFlipAI and Facebook Marketplace alerts using those keywords.
3. Spend 15 minutes daily checking fresh listings and recent eBay sales (sort by "Sold").
4. When you find a deal, message the seller for photos, condition, and proof the device can be reset.
5. Double-check model numbers and compatibility (US/International, Gen 1 vs Gen 2, etc).
6. Meet up locally if possible—cash is king, and you can test in person.
7. Clean and test the device at home. List with crisp, close-up photos and honest descriptions. Mention missing cables or any quirks.

Last month, I followed this playbook for a used August Smart Lock Pro listed for $60. I negotiated down to $50, tested it on the spot, and sold it 3 days later for $155 on Mercari. That’s $85 profit after fees and shipping.

I’ve lost money on more than one bad buy. Here’s what to watch for:

• Bricked or locked devices: If a device can’t be factory reset (especially Nest and Google Home), it’s almost worthless. I ate a $40 loss on a Nest Cam that was still linked to a previous owner’s account.
• Missing accessories: A missing power cord or mount can drop resale value by 50%. Always ask if everything’s included, and check eBay for the price difference.
• Region-locked models: Some smart home gear (like Google Home Max) works only in certain countries. I bought a Euro model for $60 that wouldn’t connect in the US—ended up selling it for parts at $25.
• Damaged or yellowed units: Smart gear that’s been in the sun can yellow badly. I once sold a sun-damaged Philips Hue Bridge for $15 after buying it for $10 (should’ve passed).
• Assuming demand: Not every discontinued device is a winner. Check the last 10 sold listings—if there are none in the last month, skip it.

Always pay with cash or PayPal Goods & Services for some protection. If something feels sketchy, walk away. Your gut is usually right.

Once you’ve got a few wins under your belt, it’s time to build repeatable profits. Here’s how I scaled my smart home flips from the occasional $50 score to $1,000+ months:

• Set recurring DealFlipAI alerts for your most profitable models. I get 2–3 actionable leads every week.
• Start buying small lots or bundles. I bought a box of 6 Nest sensors for $90, broke them up, and sold each for $55 on average (about $240 total profit).
• Network with local tech resellers. Some folks just want to offload inventory quickly—buy in bulk, negotiate hard, and cherry-pick the best.
• Reinvest profits into higher-value gear. The best flips are $100+ items with strong demand. Skip the $10 gadgets—they’re time sinks.
• Streamline your listings. Use templates, batch photos, and schedule your eBay/Mercari posts for peak times. I save hours each week this way.

Market timing matters—a lot of smart home gear spikes during back-to-school (August/September) or Black Friday/Cyber Monday. I sold out my entire Harmony stash last Q4, averaging $120 profit per unit in three weeks.