Kasa HS103P4 Smart Plugs: Schedule Without a Hub

A four-pack only makes sense if you already know where four smart plugs will go. The Kasa Smart Plug HS103P4 is built for that kind of low-friction automation: a lamp in the living room, a fan in the bedroom, seasonal lights, and another simple on/off device. You keep the hardware you already own and add app control, schedules, timers, grouping, and voice commands instead of replacing each device with a “smart” version.

The appeal is simplicity rather than cutting-edge smart-home features. HS103 works directly on 2.4GHz Wi-Fi with no separate hub, and TP-Link’s current documentation supports Alexa and Google Assistant control. The four-pack is most compelling when you want several repeatable routines at once, not one novelty outlet.

Four plugs make routines more useful than one remote switch

Kasa lets each HS103 switch a connected device on or off from the app, follow a schedule, or join a group with other Kasa devices. That turns the pack into a practical way to handle recurring jobs: lights that come on before sunset, a fan that stops after bedtime, or seasonal decorations that do not stay powered all night.

Away Mode can also vary when a connected lamp turns on and off while you are out. That is useful as a lighting routine, but it should not be treated as a security system. The real value is removing small daily switches from your mental checklist.

Voice control fits the same pattern. If your home already uses Alexa or Google Assistant, a plug can turn an ordinary lamp or fan into a device you can switch without reaching behind furniture.

The compact body is a bigger advantage than it sounds

TP-Link lists the HS103 at roughly 2.6 by 1.5 by 1.6 inches. Its shape is designed to leave the second receptacle accessible, and the current datasheet specifically describes stacking two units in the same outlet.

That matters more with a four-pack than a single plug. Bulky adapters can turn a nominal four-outlet plan into an outlet-management problem. HS103 keeps the retrofit relatively tidy, and a physical power button still gives you local on/off control when your phone is not nearby.

The 2024 U.S. datasheet lists a 15-amp maximum and up to 1,800 watts for general or resistive loads. Treat those as electrical limits, not a reason to put every high-draw appliance on a smart plug. Match the connected device to its own instructions and the hardware version printed on your plug.

Setup is simple, but 2.4GHz-only Wi-Fi is the tradeoff

HS103 does not need a Kasa hub. Each plug joins a secured 2.4GHz Wi-Fi network and is managed through the Kasa app. For many homes that is convenient because there is no extra bridge to buy or place.

The limitation is equally clear: TP-Link specifies 2.4GHz Wi-Fi only. If your network hides or disables its 2.4GHz band, onboarding may require router-side adjustments before the plug can join. TP-Link also maintains several HS103P4 hardware revisions, so firmware and support details should be checked against the version on the actual unit rather than assumed from an old guide.

If Matter support or energy monitoring is a must-have, compare newer Kasa or Tapo plugs that explicitly advertise those features. HS103P4 is easier to justify as a straightforward Kasa on/off and scheduling device.

Ignore old listings that still promise IFTTT

This is the detail most likely to be missed when shopping older smart-home hardware. TP-Link officially ended IFTTT service for Tapo and Kasa products on August 1, 2026. Old listings, reviews, or setup guides may still mention IFTTT, but it should not be part of your buying decision now.

TP-Link recommends using Smart Actions in the Kasa or Tapo app for continued automation. That keeps basic routines available, but anyone with an existing IFTTT-based workflow should plan to rebuild it before choosing this pack as a replacement.

For buyers who want four compact plugs for lamps, fans, and other simple indoor devices, HS103P4 still has a clear job: straightforward multi-room automation without a hub. Skip it if your priority is a newer interoperability standard, energy data, or an IFTTT workflow that no longer exists.