Smart Plugs / Zooz ZEN15 Power Switch (800LR revision) vs Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack)
Zooz ZEN15 Power Switch (800LR revision)
$37.95
VSKasa Matter Smart Plug KP125M (KP125MP4 4-Pack)
$37.93
Zooz ZEN15 Power Switch (800LR revision) vs Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack)
Zooz ZEN15 Power Switch (800LR revision)
The one to buy for a sump pump or dehumidifier — and it needs a Z-Wave hub.
Wins overall by 0.1 points
Quick Verdict
This is close. The Zooz ZEN15 Power Switch (800LR revision) edges ahead by 0.1 points, but that margin is inside the noise — the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) is a defensible pick on its own terms. Matter done properly — except the energy monitoring never leaves the Kasa app.
The Zooz ZEN15 Power Switch (800LR revision) and Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) are both closely matched smart Plug models, and they're priced almost identically ($37.95 vs $37.93). On Load Headroom, the Zooz ZEN15 Power Switch (800LR revision) leads (9.5 vs 4.5/10) — how much of the nameplate 15A you can actually use continuously, and what the plug is rated to do with motors, compressors and heaters — the spec buyers most often get caught by. On Ecosystem Support, the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) leads (9.0 vs 5.0/10) — matter, HomeKit, Alexa, Google, SmartThings and Home Assistant coverage. On Size & Fit, the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) leads (9.0 vs 7.0/10) — whether it blocks the second outlet on a duplex receptacle, and how it mounts. Overall, the Zooz ZEN15 Power Switch (800LR revision) scores 8.1/10 across our 8 scoring categories versus 8.0/10 for the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack), though the gap is close enough that your specific use case should decide it. Below, we break down the full spec sheet, category-by-category scores, and exactly who should buy which one.
Side-by-Side Comparison
| Spec | Zooz ZEN15 Power Switch (800LR revision) | Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) |
|---|---|---|
| Price | $37.95 | $37.93 |
| Release Year | 2017 | 2023 |
| Max Load | 15A / 1,800W at 120V, single device only — the manual forbids plugging a power strip into it | 15A / 1,800W at 120V |
| Motor / Inductive Rating | 1 HP — six times the Kasa EP25's 1/6 HP and the highest here | Not published by TP-Link for the KP125M |
| Energy Monitoring | Yes, measured — W, A, V and kWh with per-parameter reporting intervals (defaults 30s power, 300s energy/voltage/current) | Yes, measured — but only visible in the Kasa app; the Matter integration does not expose it |
| Radio & Protocol | Z-Wave 800 series with Z-Wave Long Range, S2 security and SmartStart | Matter over Wi-Fi (2.4GHz), Bluetooth for commissioning |
| Hub Required | Yes — a Z-Wave gateway (Hubitat, Home Assistant with a Z-Wave stick, SmartThings, Ring) is required and is not included | No for the Kasa app; a Matter controller (HomePod, Apple TV, Echo, Nest Hub, SmartThings) is required to use it in Apple/Google/SmartThings |
| Works Without Internet | Yes — Z-Wave is local by design; behaviour depends on your hub, not a vendor cloud | Yes — Matter commands are local, and Kasa keeps LAN control |
| Switched Outlets | 1 | 1 |
| Pack Size | 1 | 4 |
| Price per Switched Outlet ($) | 37.95 | 9.48✓ |
| Dimensions | 20 in including the cord x 2.6 x 1.1 in, 10 oz | Not published by TP-Link on the US KP125M product page |
| Blocks Second Outlet | No — it hangs off a cord rather than sitting in the receptacle | No — TP-Link markets it as mini-sized specifically to avoid blocking the adjacent socket |
| Weather Rating | Indoor only, 32-104°F | Indoor only |
| Warranty | 12 months | 24 months |
| Colors | White | White |
Category Scores
Load Headroom
The Zooz ZEN15 Power Switch (800LR revision) leads clearly here, 9.5 against 4.5 — a 5.0-point margin on how much of the nameplate 15A you can actually use continuously, and what the plug is rated to do with motors, compressors and heaters — the spec buyers most often get caught by. If that is what you are buying for, the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) does not close the gap elsewhere.
Energy Monitoring
The Zooz ZEN15 Power Switch (800LR revision) leads clearly here, 9.5 against 8.0 — a 1.5-point margin on whether power is genuinely measured, what quantities are reported, and where you can see them. If that is what you are buying for, the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) does not close the gap elsewhere.
Ecosystem Support
The Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) leads clearly here, 9.0 against 5.0 — a 4.0-point margin on matter, HomeKit, Alexa, Google, SmartThings and Home Assistant coverage. If that is what you are buying for, the Zooz ZEN15 Power Switch (800LR revision) does not close the gap elsewhere.
Local Control
The Zooz ZEN15 Power Switch (800LR revision) leads clearly here, 9.5 against 8.5 — a 1.0-point margin on whether switching and schedules survive an internet outage, or depend on a vendor cloud. If that is what you are buying for, the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) does not close the gap elsewhere.
Size & Fit
The Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) leads clearly here, 9.0 against 7.0 — a 2.0-point margin on whether it blocks the second outlet on a duplex receptacle, and how it mounts. If that is what you are buying for, the Zooz ZEN15 Power Switch (800LR revision) does not close the gap elsewhere.
Build & Safety
The Zooz ZEN15 Power Switch (800LR revision) leads clearly here, 9.0 against 8.5 — a 0.5-point margin on certification, flame-retardant housing, overload protection, recall history and warranty. If that is what you are buying for, the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) does not close the gap elsewhere.
App & Automation
The Zooz ZEN15 Power Switch (800LR revision) leads clearly here, 8.5 against 8.0 — a 0.5-point margin on scheduling, away modes, sunrise/sunset triggers and how good the controlling app is. If that is what you are buying for, the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) does not close the gap elsewhere.
Value
The Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) leads clearly here, 8.5 against 7.0 — a 1.5-point margin on what a switched, metered outlet actually costs once the pack size and any required hub are counted. If that is what you are buying for, the Zooz ZEN15 Power Switch (800LR revision) does not close the gap elsewhere.
Best For
Choose the Zooz ZEN15 Power Switch (800LR revision) if…
- • Load Headroom matters most to you — the Zooz ZEN15 Power Switch (800LR revision) scores 9.5/10 here (how much of the nameplate 15A you can actually use continuously, and what the plug is rated to do with motors, compressors and heaters — the spec buyers most often get caught by).
- • Energy Monitoring matters most to you — the Zooz ZEN15 Power Switch (800LR revision) scores 9.5/10 here (whether power is genuinely measured, what quantities are reported, and where you can see them).
- • Your main use case is heavy-appliance.
Choose the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) if…
- • Ecosystem Support matters most to you — the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) scores 9.0/10 here (matter, HomeKit, Alexa, Google, SmartThings and Home Assistant coverage).
- • Size & Fit matters most to you — the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) scores 9.0/10 here (whether it blocks the second outlet on a duplex receptacle, and how it mounts).
- • Value matters most to you — the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) scores 8.5/10 here (what a switched, metered outlet actually costs once the pack size and any required hub are counted).
- • Your main use case is indoor-mini or matter.
Pros & Cons
Zooz ZEN15 Power Switch (800LR revision)
Pros
- +The only plug here designed for inductive loads — 1 HP against 1/6 HP on a Kasa mini
- +Hardware overload protection cuts the relay at 16.5A sustained, independent of any hub
- +Four measured quantities (W, A, V, kWh) with tunable reporting thresholds — the richest metering in this table
- +Fully local Z-Wave with S2 security; no vendor cloud is in the path at all
- +Cord-mounted design frees both receptacles
Cons
- −Sources conflict on what it is for: retailers market it for 110V AC units and sump pumps, while the 800LR manual's safety list prohibits electric heaters, 220V boilers, 220V pumps/compressors and electrical dryers
- −Needs a Z-Wave hub — the most expensive prerequisite in this comparison
- −Amazon's single long-running ZEN15 listing has carried both the 500-series and the 800LR revision; buy from a Zooz dealer if you specifically need Long Range
- −One device only — the manual explicitly forbids connecting a power strip
- −$37.95 for a single outlet, with a 1-year warranty
Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack)
Pros
- +Matter multi-admin means the same plug can live in Apple Home and Alexa simultaneously — the Kasa EP25 cannot
- +Matter on/off is handled locally, so it survives an internet outage
- +Street price has fallen to roughly half the $69.99 launch MSRP for the 4-pack
- +2-year warranty and UL certification
Cons
- −The headline energy monitoring is invisible over Matter — you must install the Kasa app alongside your chosen platform to see a single watt
- −TP-Link does not publish a motor/HP rating for this model, so inductive loads are a guess
- −Needs a Matter controller you may not own; the plug alone does nothing in Apple Home without a HomePod or Apple TV
- −Amazon 4-pack pricing swings between roughly $37 and $43, so per-unit comparisons against 2-packs are unstable
Shop by Need
FAQs
Is the Zooz ZEN15 Power Switch (800LR revision) or Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) better overall?+
Based on our 8-category scoring, the Zooz ZEN15 Power Switch (800LR revision) comes out ahead overall. See the full breakdown in the scores section above — the right pick still depends on which categories matter most for your use case.
Which is better for Load Headroom, the Zooz ZEN15 Power Switch (800LR revision) or the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack)?+
The Zooz ZEN15 Power Switch (800LR revision) scores higher on Load Headroom (9.5/10 vs 4.5/10) — how much of the nameplate 15A you can actually use continuously, and what the plug is rated to do with motors, compressors and heaters — the spec buyers most often get caught by.
Which is better for Ecosystem Support, the Zooz ZEN15 Power Switch (800LR revision) or the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack)?+
The Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) scores higher on Ecosystem Support (9.0/10 vs 5.0/10) — matter, HomeKit, Alexa, Google, SmartThings and Home Assistant coverage.
Which is better for Size & Fit, the Zooz ZEN15 Power Switch (800LR revision) or the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack)?+
The Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) scores higher on Size & Fit (9.0/10 vs 7.0/10) — whether it blocks the second outlet on a duplex receptacle, and how it mounts.
Which is better for Energy Monitoring, the Zooz ZEN15 Power Switch (800LR revision) or the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack)?+
The Zooz ZEN15 Power Switch (800LR revision) scores higher on Energy Monitoring (9.5/10 vs 8.0/10) — whether power is genuinely measured, what quantities are reported, and where you can see them.
Is the Zooz ZEN15 Power Switch (800LR revision) worth the price difference over the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack)?+
The Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) is the cheaper option at $37.93 versus $37.95. Whether the pricier model is "worth it" depends on how much you value its lead in Load Headroom.
Which is better suited to my use case?+
The Zooz ZEN15 Power Switch (800LR revision) is the better fit if you mainly care about heavy-appliance. The Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) is the better fit for indoor-mini or matter.
What's the warranty on the Zooz ZEN15 Power Switch (800LR revision) vs the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack)?+
The Zooz ZEN15 Power Switch (800LR revision) ships with a 12-month warranty; the Kasa Matter Smart Plug KP125M (KP125MP4 4-Pack) ships with a 24-month warranty. Always confirm current terms on the manufacturer's site before buying.
Should I wait for the next model instead of buying either of these?+
If either model is more than two years old, a successor may be close — check the "Latest Model" link on each product page. Otherwise, both are current, well-supported options and there's no strong reason to wait.
Cheaper Option
Kasa Smart Plug Mini EP25 (EP25P4 4-Pack) — $32.99
Premium Option
Tapo Smart Wi-Fi Power Strip P316M — $49.99
Specifications and prices for both products last verified . Scores are calculated from published specifications — see how we compare products.