Smart Plugs / Tapo Smart Wi-Fi Power Strip P316M vs Kasa Matter Smart Outdoor Plug EP40M
Tapo Smart Wi-Fi Power Strip P316M vs Kasa Matter Smart Outdoor Plug EP40M
Tapo Smart Wi-Fi Power Strip P316M
Six metered, individually switched outlets — and one shared 1,875W budget.
Wins overall by 0.8 points
Quick Verdict
The Tapo Smart Wi-Fi Power Strip P316M takes this by a clear 0.8 points. Six metered, individually switched outlets — and one shared 1,875W budget. The Kasa Matter Smart Outdoor Plug EP40M only makes sense if it wins on a category you care about more than the total.
The Tapo Smart Wi-Fi Power Strip P316M and Kasa Matter Smart Outdoor Plug EP40M are both closely matched smart Plug models, and the Kasa Matter Smart Outdoor Plug EP40M is $24 cheaper than the Tapo Smart Wi-Fi Power Strip P316M ($25.99 vs $49.99). On Energy Monitoring, the Tapo Smart Wi-Fi Power Strip P316M leads (9.0 vs 0.0/10) — whether power is genuinely measured, what quantities are reported, and where you can see them. On Load Headroom, the Kasa Matter Smart Outdoor Plug EP40M leads (7.5 vs 6.0/10) — 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 Size & Fit, the Kasa Matter Smart Outdoor Plug EP40M leads (6.0 vs 5.0/10) — whether it blocks the second outlet on a duplex receptacle, and how it mounts. Overall, the Tapo Smart Wi-Fi Power Strip P316M scores 7.8/10 across our 8 scoring categories versus 7.0/10 for the Kasa Matter Smart Outdoor Plug EP40M. Below, we break down the full spec sheet, category-by-category scores, and exactly who should buy which one.
Side-by-Side Comparison
| Spec | Tapo Smart Wi-Fi Power Strip P316M | Kasa Matter Smart Outdoor Plug EP40M |
|---|---|---|
| Price | $49.99 | $25.99 |
| Release Year | 2025 | 2024 |
| Max Load | 15A / 1,875W total at 125V, shared across all six outlets | 15A / 1,875W total, shared across both outlets |
| Motor / Inductive Rating | Not published by TP-Link | 1/2 HP |
| Energy Monitoring | Yes, measured per outlet — watts, kWh and estimated cost in the Tapo app | No — TP-Link staff confirmed on its own forum that it cannot be added by firmware and closed the request as Declined |
| Radio & Protocol | Matter over Wi-Fi (2.4GHz) | Matter over Wi-Fi (2.4GHz), Bluetooth for commissioning |
| Hub Required | No for the Tapo app; a Matter controller is required for Apple/Google/SmartThings | No for the Kasa app; a Matter controller is required for Apple/Google/SmartThings |
| Works Without Internet | Yes — Matter control is local once commissioned | Yes — Matter control is local and Kasa keeps LAN control |
| Switched Outlets | 6✓ | 2 |
| Pack Size | 1 | 1 |
| Price per Switched Outlet ($) | 8.33✓ | 13 |
| Dimensions | 360 x 63.3 x 37.5 mm (14.17 x 2.49 x 1.48 in), 1.55 lb | 110 x 39 x 81 mm (4.33 x 1.54 x 3.19 in) |
| Blocks Second Outlet | Not applicable — 37-inch cord, occupies one wall socket | Not applicable — mounts on its own clamp rather than sitting on a duplex receptacle |
| Weather Rating | Indoor only | IP64, ETL certified, -4°F to 122°F. The IP64 figure covers the sealed body; TP-Link publishes no rating for a socket with a cord inserted and the sockets are meant to face down |
| Warranty | 24 months | 24 months |
| Colors | White | Black |
Category Scores
Load Headroom
The Kasa Matter Smart Outdoor Plug EP40M leads clearly here, 7.5 against 6.0 — a 1.5-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 Tapo Smart Wi-Fi Power Strip P316M does not close the gap elsewhere.
Energy Monitoring
The Tapo Smart Wi-Fi Power Strip P316M leads clearly here, 9.0 against 0.0 — a 9.0-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 Outdoor Plug EP40M does not close the gap elsewhere.
Ecosystem Support
The Tapo Smart Wi-Fi Power Strip P316M and Kasa Matter Smart Outdoor Plug EP40M are level here, at 9.0/10 each. matter, HomeKit, Alexa, Google, SmartThings and Home Assistant coverage is not what separates these two — look to the categories where the scores diverge.
Local Control
The Tapo Smart Wi-Fi Power Strip P316M and Kasa Matter Smart Outdoor Plug EP40M are level here, at 8.5/10 each. whether switching and schedules survive an internet outage, or depend on a vendor cloud is not what separates these two — look to the categories where the scores diverge.
Size & Fit
The Kasa Matter Smart Outdoor Plug EP40M leads clearly here, 6.0 against 5.0 — a 1.0-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 Tapo Smart Wi-Fi Power Strip P316M does not close the gap elsewhere.
Build & Safety
The Tapo Smart Wi-Fi Power Strip P316M and Kasa Matter Smart Outdoor Plug EP40M are level here, at 8.5/10 each. certification, flame-retardant housing, overload protection, recall history and warranty is not what separates these two — look to the categories where the scores diverge.
App & Automation
The Tapo Smart Wi-Fi Power Strip P316M 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 Outdoor Plug EP40M does not close the gap elsewhere.
Value
The Kasa Matter Smart Outdoor Plug EP40M leads clearly here, 8.5 against 7.5 — a 1.0-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 Tapo Smart Wi-Fi Power Strip P316M does not close the gap elsewhere.
Best For
Choose the Tapo Smart Wi-Fi Power Strip P316M if…
- • Energy Monitoring matters most to you — the Tapo Smart Wi-Fi Power Strip P316M scores 9.0/10 here (whether power is genuinely measured, what quantities are reported, and where you can see them).
- • App & Automation matters most to you — the Tapo Smart Wi-Fi Power Strip P316M scores 8.5/10 here (scheduling, away modes, sunrise/sunset triggers and how good the controlling app is).
- • Your main use case is power-strip or energy-monitoring.
Choose the Kasa Matter Smart Outdoor Plug EP40M if…
- • Load Headroom matters most to you — the Kasa Matter Smart Outdoor Plug EP40M scores 7.5/10 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).
- • Size & Fit matters most to you — the Kasa Matter Smart Outdoor Plug EP40M scores 6.0/10 here (whether it blocks the second outlet on a duplex receptacle, and how it mounts).
- • Value matters most to you — the Kasa Matter Smart Outdoor Plug EP40M scores 8.5/10 here (what a switched, metered outlet actually costs once the pack size and any required hub are counted).
- • You want to spend less — it's $24 cheaper.
- • Your main use case is outdoor.
Pros & Cons
Tapo Smart Wi-Fi Power Strip P316M
Pros
- +Per-outlet metering is the cheapest honest way to find out what each device on a desk actually draws
- +Six switched outlets at $8.33 each undercuts buying six individual metered plugs
- +Matter certified, so it can be shared across Apple, Google, Alexa and SmartThings — TP-Link's own HS300 cannot
- +Surge protection and overcurrent cut-off built in
Cons
- −1,875W is the budget for all six outlets combined, so one space heater consumes most of the strip
- −TP-Link publishes the Type 3 SPD voltage clamps but no joule rating, which is the number surge buyers actually compare
- −Retail pricing is inconsistent — $49.99 at B&H against $59.99 at Best Buy for the same SKU
- −14 inches long and 1.5 lb; it is a strip, not something to hide behind furniture
Kasa Matter Smart Outdoor Plug EP40M
Pros
- +1/2 HP motor rating — three times the EP25's, which matters for pond pumps and inflatables
- +Two outlets you can schedule separately, so lights and a pump are not tied together
- +Matter multi-admin plus a wide -4°F to 122°F operating range for real winter use
- +2-year warranty, unusual for outdoor gear at this price
Cons
- −No energy monitoring at all, and TP-Link has publicly refused to add it — the cheaper indoor Kasa plugs meter, this does not
- −IP64 is splash resistance, not immersion; a plug sitting in standing water or snowdrift is outside the rating
- −15A is the total for the pair, not per outlet — two 1,000W devices will trip it
- −Needs a Matter controller for Apple, Google or SmartThings; only the Kasa app works standalone
Shop by Need
FAQs
Is the Tapo Smart Wi-Fi Power Strip P316M or Kasa Matter Smart Outdoor Plug EP40M better overall?+
Based on our 8-category scoring, the Tapo Smart Wi-Fi Power Strip P316M 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 Energy Monitoring, the Tapo Smart Wi-Fi Power Strip P316M or the Kasa Matter Smart Outdoor Plug EP40M?+
The Tapo Smart Wi-Fi Power Strip P316M scores higher on Energy Monitoring (9.0/10 vs 0.0/10) — whether power is genuinely measured, what quantities are reported, and where you can see them.
Which is better for Load Headroom, the Tapo Smart Wi-Fi Power Strip P316M or the Kasa Matter Smart Outdoor Plug EP40M?+
The Kasa Matter Smart Outdoor Plug EP40M scores higher on Load Headroom (7.5/10 vs 6.0/10) — 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 Size & Fit, the Tapo Smart Wi-Fi Power Strip P316M or the Kasa Matter Smart Outdoor Plug EP40M?+
The Kasa Matter Smart Outdoor Plug EP40M scores higher on Size & Fit (6.0/10 vs 5.0/10) — whether it blocks the second outlet on a duplex receptacle, and how it mounts.
Which is better for Value, the Tapo Smart Wi-Fi Power Strip P316M or the Kasa Matter Smart Outdoor Plug EP40M?+
The Kasa Matter Smart Outdoor Plug EP40M scores higher on Value (8.5/10 vs 7.5/10) — what a switched, metered outlet actually costs once the pack size and any required hub are counted.
Is the Tapo Smart Wi-Fi Power Strip P316M worth the price difference over the Kasa Matter Smart Outdoor Plug EP40M?+
The Kasa Matter Smart Outdoor Plug EP40M is the cheaper option at $25.99 versus $49.99. Whether the pricier model is "worth it" depends on how much you value its lead in Energy Monitoring.
Which is better suited to my use case?+
The Tapo Smart Wi-Fi Power Strip P316M is the better fit if you mainly care about power-strip or energy-monitoring. The Kasa Matter Smart Outdoor Plug EP40M is the better fit for outdoor.
What's the warranty on the Tapo Smart Wi-Fi Power Strip P316M vs the Kasa Matter Smart Outdoor Plug EP40M?+
The Tapo Smart Wi-Fi Power Strip P316M ships with a 24-month warranty; the Kasa Matter Smart Outdoor Plug EP40M 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.
Specifications and prices for both products last verified . Scores are calculated from published specifications — see how we compare products.