TP-Link Tapo P110 Review: The Cheap Smart Plug That Counts Your kWh
The P110 is the plug most people end up with when they want to know what the tumble dryer or the gaming PC is really costing them. It is cheap, it is small and it reports energy use in an app. What nobody publishes is how accurate that reading is — so we have set out who has checked it, and how far that checking goes.
Where the reviews line up
The evidence comes from three places: a long-running hands-on review at the UK tech site Mighty Gadget, owners comparing its readings with other meters on the TechEnclave forum, and the buyer ratings at Argos and Amazon as listed by Latest Deals. They agree on the important things.
It is good value and it does the basics well. Setup is quick, schedules and timers work, Alexa and Google Assistant control is there, and no hub is needed. The energy monitoring is the reason to buy it over the cheaper P100, and owners who have checked it against other meters say it is close — one reports within about 3% across loads from 8 W to 1,350 W. That is an owner's claim, not a laboratory test, and nobody we found has published a calibrated accuracy figure.
The weak points are consistent too. It is 2.4 GHz Wi-Fi only, you must create a TP-Link ID account to use it, the app is functional rather than polished, and there is no Apple HomeKit or Matter on this model — that is the P110M.
On heaters: the plug is rated 13 A (2,990 W), but TP-Link's own guidance is to keep long-running loads to 80% of the maximum. Our sum puts that at about 2,390 W. A 2 kW heater sits inside that; a 3 kW fan heater running for hours does not, and we would not put one on any smart plug.
The three reviews this summary is built from
- Mighty GadgetUK tech site, 90% score after months of use running real kit. No reference-meter test.
- TechEnclave forumOwners checking readings against other meters. Indian forum, so likely the 16 A Indian P110.
- Argos and Amazon buyers4.4/5 from 124 (Argos, single) and 4.6/5 from 595 (Amazon, 4-pack), via Latest Deals.
Before the review: P110, P110M or P100?
Three Tapo plugs look almost identical. The P100 is the same size but has no energy monitoring. The P110 reviewed here adds monitoring. The P110M is, in Mighty Gadget's words, literally the same plug with Matter added — which is how you get it into Apple Home. Mighty Gadget also notes that energy readings do not yet pass through Matter, so on a P110M you still read them in the Tapo app. If you use an iPhone and want HomeKit, buy the P110M; otherwise the P110 is the cheaper choice.
Specification at a glance
| Spec | Figure | Confidence |
|---|---|---|
| Maximum load | 13 A, 2,990 W; 1/6 HP motor | TP-Link UK product page |
| Long-running loads | Keep to 80% of maximum or less — about 2,390 W by our sum | TP-Link/Tapo load FAQ; the watt figure is ours |
| Plug's own draw | 0.64 W relay off · 1.64 W relay on | TP-Link UK product page |
| Standby cost | About £1.48 a year switched off; £3.78 a year switched on, per plug | Our sum at 26.32p/kWh, running all year |
| Wi-Fi | 2.4 GHz only, 802.11b/g/n. No hub | TP-Link UK product page |
| Voice and platforms | Alexa, Google Assistant, SmartThings. No HomeKit, no Matter (that is the P110M) | TP-Link lists the first three only |
| App and account | Tapo app; a TP-Link ID login is required at setup | TP-Link setup FAQ, updated September 2026 |
| Energy monitoring | Live power, today, past 30 days and 12 months; set your own tariff | Mighty Gadget, T3 |
| Monitoring accuracy | Not published by TP-Link | Owner checks only — see below |
| Dimensions | 72 × 51 × 40 mm (TP-Link) · 72.5 × 51.5 × 37.4 mm (Argos) · 5.3 × 7.25 × 6.8 cm (Atlantic Electrics) | Three sellers disagree; the 6.8 cm probably includes the pins, but we could not confirm |
| Weight | 90 g | Atlantic Electrics only |
| Safety and approvals | UL94 V-0 flame-retardant PC; CE and UKCA | TP-Link UK product page |
| Operating range | 0–35°C, 10–90% humidity, indoors | TP-Link UK product page |
| Guarantee | 2 years | Atlantic Electrics, EE and the Argos listing; TP-Link's product page does not state it |
| Price | RRP £14.99–£15 single · £11.99 single at Atlantic Electrics · £34.99 for four at EE (£8.75 a plug) · £46.61 for four at Ebuyer (£11.65 a plug) | RRP from Mighty Gadget; retailer prices checked 6 October 2026 |
Mighty Gadget
This is the most useful hands-on review because the author used the plug to do the job most people buy it for: finding out what a piece of kit was costing and cutting it. He ran a home server through it, used the readings to automate it, and reports the daily figure falling from 4.37 kWh to 2.64 kWh. That shows the monitoring is useful for spotting a change; it does not show how accurate each reading is, and the review does not claim to have checked against a meter.
His verdict is a great buy even at the full £15, now that it sells for much less. The plug is small enough that it "doesn't get in the way of any other plugs", and the app gives 30-day and 12-month consumption graphs. The criticisms are fair and specific: the Tapo app is "a bit ugly" next to TP-Link's older Kasa app, so if you own both ranges you run two apps, and there is no IFTTT support. In a separate review of the Matter version, the same site confirms the P110M has the same dimensions and the same 2,990 W limit. T3 reached a similar verdict on the P110M, praising the app but noting the plug overhangs slightly on an extension lead.
Watch: TP Link Tapo P110 Mini Smart Wi Fi Plug Review Energy Monitoring, Scheduling & Voice Control
A review of the exact plug covering the same three things Mighty Gadget tests: energy readings, schedules and voice control.
Watch on YouTube ↗TechEnclave forum
No editorial review we found tested the P110's readings against a calibrated meter, so the best evidence comes from owners who did their own checks. This is an Indian enthusiast forum, and the Indian P110 is a 16 A version with a different plug, so treat it as the same metering on a regional sibling, not the UK model itself.
The findings are mostly positive. In October 2024, member rsaeon tested a Tapo at a small load and at over 1 kW and concluded the Tapo plugs are "just as accurate as the calibrated Tasmota ones" he already used — the photos are on the thread, but the readings are not written out. In July 2025, saikatck reported readings "within +/- 3% of the wattage mentioned for the appliance" from 8 W to 1,350 W. Note what he compared against: the rating on the appliance, not a meter. The dissent is useful too: nando saw 1,300–1,400 W on an air conditioner rated at 1,618 W and doubted the plug. An air conditioner does not draw its rated figure all the time, so that is not proof of a fault — but it shows the readings deserve sense-checking, not blind trust.
Watch: TP LINK Tapo P110 — WiFi Smart Plug with App Remote Control and Energy Monitoring Unboxing and Setup
Unboxing and setup, including the energy screen — useful to see what the readings look like before you trust them.
Watch on YouTube ↗Argos and Amazon buyers
Argos and Amazon both block us or load their reviews by script, so these figures come from deal listings that quote them, not from the shops themselves. The listings are not dated, so the counts may be older than our check. Together that is 719 ratings, all on pages selling the product, and none purchase-verified in a way we could see.
A 4.4 and a 4.6 are solid for a product this cheap, and they match the editorial view that it does what it says. What the scores cannot tell you is why the minority gave low marks — the listings carry no review text, so we have not guessed. The two limits most likely to catch a buyer out are in the spec table: it needs a 2.4 GHz Wi-Fi band and a TP-Link account. Check both before you buy a four-pack.
Watch: TP Link Tapo P110 Energy Saving Smart Plug Review
An owner-style review focused on saving energy — the reason most buyers give for choosing the P110 over the P100.
Watch on YouTube ↗Strengths and weak points
What holds up
- Energy monitoring in a plug costing under £12, or under £9 each in a four-pack.
- No hub: it joins your Wi-Fi directly.
- Works with Alexa, Google Assistant and SmartThings.
- Small enough not to block the next socket on a typical wall socket, according to Mighty Gadget.
- Owners who checked it against other meters found it close.
- The plug itself draws only 0.64 W when off — under £1.50 a year by our sum.
What people complain about
- 2.4 GHz Wi-Fi only.
- A TP-Link ID account is required at setup.
- No HomeKit or Matter on the P110 — you need the P110M.
- The app is clunky next to TP-Link's Kasa app, and there is no IFTTT.
- TP-Link publishes no accuracy figure for the monitoring.
- Not for long-running 3 kW heaters, fridges, washing machines or other motor loads.
Who it actually suits
Buy it if you want to know what a dehumidifier, a tumble dryer, an oil-filled radiator or a PC is costing you, or want lamps and chargers on a schedule, and you use Alexa or Google. A four-pack brings the price below £9 a plug, which is hard to beat for monitoring. It pairs well with a Hive Thermostat Mini if you are trying to get a grip on the whole bill.
Look elsewhere if your home is built around Apple Home (buy the P110M), you will not create a cloud account, or you want to switch a big fan heater or anything with a motor. If you are building out a smart home, see our Ring Battery Video Doorbell 2K and Yale Linus Smart Lock L2 reviews too.
What we could not check
- Calibrated accuracy. TP-Link publishes no figure, and no editorial test we found checked the readings against a reference meter. The forum checks are owners' own, and one compares against appliance ratings rather than a meter.
- Which? results. Which? appears to have tested the P110, but the results are paywalled and the public link we found only redirects, so we have quoted nothing from it.
- Dimensions. TP-Link, Argos and Atlantic Electrics give three different sets. We could not measure one, so we cannot tell you exactly how it sits on every double socket.
- The guarantee. Retailers say 2 years; TP-Link's UK product page does not state it, and we did not find TP-Link's own UK warranty terms.
- Buyer ratings at source. Argos and Amazon would not load for us. The 124 and 595 figures come from Latest Deals listings that are not dated.
- Live prices at Argos and Amazon. For the same reason; the prices in the table are from retailers whose pages we could read.
- The videos. All three were confirmed by appearing in two differently-worded search listings, not by opening them, because YouTube does not load from here. No channel names appeared in the listings.
- Hardware versions. TP-Link sells several hardware versions; we could not check whether readings or firmware differ between them.
Sources last checked 6 October 2026. Smart plug prices move weekly — check the price per plug in multipacks against the listing in front of you.