Deals · Anti-Buy List

What NOT to Buy Before Prime Big Deal Days (Oct 6-7): 5 Robots and Cameras to Hold On

By HTB Deals Desk · Updated September 16, 2026 · 6 min read

Data-research based · Owner-feedback aggregated · Prices checked Sep 2026

Prime Big Deal Days is officially confirmed for October 6-7, and every year the same mistake repeats: buyers pay near-full price in late September for the exact models that get their deepest cuts two weeks later. This is your anti-buy list — the five smart-home items where waiting is the smarter purchase.

Roomba Combo j9+ parked on its Auto-Fill dock — Roomba Combo j9+ with Auto-Fill dock — a flagship that typically drops during event sales (product image).

1. Roborock Qrevo Curv — the flagship that always drops

History says the Curv loses $150-250 during event windows (it has touched $899-$949 before). Buying at $1,099 now means eating a discount that lands in 20 days.

Street price now: $1,049-$1,299 · Expect: ~$949 or better on Oct 6-7.

Check Qrevo Curv Price on Amazon

2. Roomba Combo j9+ — bundles are the event story

iRobot almost always bundles the Auto-Fill dock during events. A standalone j9+ combo bought today is usually $100-200 more than the event bundle.

Street price now: $1,099 · Expect: $849-$899 bundle on Oct 6-7.

Check Roomba Combo Price on Amazon

3. Dreame X40 Ultra — the 25-35 percent rule

Dreame flagships consistently hit 25-35 percent off in October events. Today’s “deal” is next month’s regular price.

Street price now: $899-$1,099 · Expect: $699-$799 on Oct 6-7.

Check Dreame X40 Ultra Price on Amazon

4. Reolink Argus 4 Pro — cameras get event cuts too

Last event took the 4K wire-free flagship down to the $139-$159 band. Unless you need it this week, hold.

Street price now: $169-$199 · Expect: $139-$159 on Oct 6-7.

Check Reolink Argus 4 Pro Price on Amazon

5. eufy camera + HomeBase bundles — the hidden gem deals

eufy’s real event savings hide in camera + HomeBase bundles. Buying a standalone camera today locks you out of the bundle price.

Street price now: varies · Expect: 20-30 percent off bundles on Oct 6-7.

What you SHOULD buy now

Budget robots at the floor: Q5 Pro+ around $229 is not going to get meaningfully cheaper.
Tapo C425 2-packs: near $99-109 already; event pricing rarely beats this by much.
Anything you need this week: the event is 20 days out — a week of missed cleaning is not worth $50.

Bottom line

The golden rule for the next 20 days: flagships wait, budget buys now. Set your deal alerts on the models above, and let October 6-7 do the work. We will update live prices here when the event opens.

Browse Smart Home Deals on Amazon

Sources

Amazon U.S. – Prime Big Deal Days 2026 official announcement (Sep 14-15, 2026)
Amazon U.S. – price history for listed models (Sep 2026)
Amazon U.S. newsroom – event details

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