Reviews are independent. Prices are indicative (SGD) and change often — always check the latest price before buying. We may earn a commission from some links.
An energy monitoring smart plug does something a normal smart plug cannot: it measures exactly how much electricity a device draws, so you can see what your fan, fridge, PC or aircon actually costs to run each month. This guide covers the best energy-monitoring smart plugs in Singapore, judged on measurement accuracy, how clearly the app presents kWh and cost data, and reliability on local Wi-Fi. With SG electricity tariffs where they are, spotting standby waste can pay a plug back quickly.
It is written for cost-conscious HDB and condo owners who want hard numbers, whether to hunt down phantom loads, decide if an old appliance is worth replacing, or simply understand their bill. We weigh how granular the usage history is (real-time watts, daily and monthly totals), whether you can input a tariff rate for SGD estimates, and how well each plug integrates with Google Home and Alexa. Pair it with our smart home guides to automate around what you learn.
What to look for in Singapore
- Genuine power measurement (watts, kWh) rather than just on-off, with a history view for daily and monthly totals.
- The ability to enter your electricity tariff so the app estimates running cost in Singapore dollars, not just energy.
- Accuracy at both low and high loads, so it reads standby draw and a running aircon compressor sensibly.
- Sufficient current rating (10A or more) to safely monitor high-draw appliances like heaters, kettles or aircon.
- A clear, stable app that keeps historical data and does not lose logs when the plug briefly drops offline.
- Singapore three-pin (Type G) design that fits local sockets without blocking the adjacent outlet on a strip.
- Voice and ecosystem support (Google Home, Alexa, or Apple Home) if you also want automation, though usage stats stay in the brand app.
- Local warranty and authentic stock, easy for Tapo, Meross, Aqara and SwitchBot in Singapore.
At a glance
| Model | Best for | Key spec | Indicative price | Rating |
|---|---|---|---|---|
| TP-Link Tapo P110 — Editor’s Choice | Overall energy monitor | Wi-Fi, real-time W + kWh history | $18–$30 | ★★★★★ |
| Meross Smart Plug (energy) — Best for Apple | Apple Home + stats | Wi-Fi, HomeKit, energy data | $25–$40 | ★★★★☆ |
| Aqara Smart Plug — Best for smart homes | Zigbee accuracy | Zigbee, energy monitor, needs hub | $30–$45 | ★★★★☆ |
| SwitchBot Plug Mini — Best app history | Detailed logs | Wi-Fi, energy stats + automations | $20–$30 | ★★★★☆ |
| TP-Link Tapo P115 — Best compact monitor | Small footprint | Wi-Fi, energy monitoring, mini | $18–$28 | ★★★★☆ |
The picks
Editor’s Choice
TP-Link Tapo P110
The Tapo P110 is the energy-monitoring plug we recommend to most Singapore homes: it shows real-time watts plus daily, weekly and monthly usage, stays reliable on local Wi-Fi, and works with Google Home and Alexa. The Tapo app is clear and stores history well, making it easy to catch standby waste. Superb value for the insight it gives.
Pros
- Clear real-time and historical stats
- Very reliable connection
- Great price for the features
Cons
- No native Apple HomeKit
- Cost estimate needs manual tariff input
Best for Apple Home
Meross Smart Plug (energy)
Meross’ energy-monitoring plug adds native HomeKit alongside Google and Alexa, so Apple households get usage tracking and voice control in one device. It runs hub-free on Wi-Fi and presents consumption data in its app. A solid pick if you want stats without leaving the Apple ecosystem.
Pros
- Native Apple HomeKit
- Energy monitoring included
- Hub-free setup
Cons
- App less polished than Tapo
- Check model has energy metering
Best for smart homes
Aqara Smart Plug
Aqara’s Zigbee plug pairs accurate energy monitoring with fast, reliable local control, making it ideal for enthusiasts running many devices. It needs an Aqara hub, but in return you get responsive automation and broad Google, Alexa and Apple Home support. The best choice inside a larger smart home.
Pros
- Accurate energy metering
- Fast, reliable Zigbee control
- Wide ecosystem support
Cons
- Requires an Aqara hub
- Higher upfront cost
Best app history
SwitchBot Plug Mini
SwitchBot’s Plug Mini offers detailed energy logs and flexible automations, and it links into the wider SwitchBot ecosystem of curtains and sensors. If you want granular history and scenes in one app, it is a strong value monitor.
Pros
- Detailed usage history
- Rich automations
- Compact body
Cons
- Best inside SwitchBot ecosystem
- Some scenes need a hub
Best compact monitor
TP-Link Tapo P115
The P115 is essentially a mini P110, keeping full energy monitoring in a smaller body that fits tight HDB power strips better. Same reliable Tapo app and stats, just a more compact footprint. A great pick if socket space is scarce.
Pros
- Full energy monitoring, compact
- Reliable Tapo app
- Strip-friendly size
Cons
- No HomeKit
- Manual tariff for cost estimate
The verdict
The TP-Link Tapo P110 is the best energy monitoring smart plug for most Singapore homes on accuracy, app clarity and value, with the compact P115 for tight sockets and Aqara for accuracy inside a larger smart-home setup.
Frequently asked questions
How accurate are energy monitoring smart plugs?
For household use they are accurate enough to be genuinely useful, reading standby draw and running loads within a small margin. They are not laboratory-grade meters, but they reliably show which devices waste power and how usage trends over days and months.
Can a smart plug show my electricity cost in dollars?
Yes, if you enter your tariff rate. Apps like Tapo let you input your cents-per-kWh so the plug estimates running cost in SGD. Without that, it still shows kWh used, which you can multiply by your rate.
Will an energy monitoring plug work with my aircon?
It can monitor the aircon’s power draw if you use a plug rated for the load (10A or more) and the unit plugs into a wall socket. Note it only measures and switches power, it cannot change temperature, for that you need an aircon controller like Sensibo or Aqara.
Is it worth buying an energy monitoring smart plug in Singapore?
Often yes. At current tariffs, identifying and cutting standby loads on entertainment systems, chargers and old appliances can save a few dollars a month per device, paying back an $18 to $30 plug within a year while giving you useful data.
Do energy stats sync to Google Home or Alexa?
No. Google Home and Alexa handle voice control and on-off, but energy usage data lives in the brand app (Tapo, Meross, SwitchBot or Aqara). You use both apps together: assistants for control, brand app for insight. Some brand apps can export the data as a report if you want to track a device’s consumption over several months.
Related guides
Planning a smarter home?
Tell us your space and budget — we’ll point you to the right devices, or connect you with a supplier.
