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Kasa HS103P4 vs Amazon Smart Plug: Choose by Assistant and Pack Size

The choice is mainly rollout size and assistant fit: Kasa’s HS103P4 is a four-plug package and the HS103 family lists Google Assistant as well as Alexa; Amazon Smart Plug is a one-pack designed for Alexa. Both list app setup without a separate hub, so choose by the number of outlets and the assistant you already use.

Published by Pickoryx · Published 2026-10-03

Source checked 2026-10-03 14:37 UTC

Products compared

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The buying question

Should you buy the Kasa HS103P4 four-pack or one Amazon Smart Plug, and does Google Assistant support or Alexa-only setup fit your household?

The Kasa HS103P4 pack has four plugs and the HS103 family lists both Alexa and Google Assistant support. The Amazon Smart Plug is a one-pack with Alexa-only support. Both manufacturers describe app-based setup without a separate hub.

Quick verdict

Choose Kasa Smart Plug HS103P4 White 4-Pack if

  • You plan to automate several outlets and want four HS103 plugs in the four-pack.
  • Google Assistant support is important; Kasa lists it for the HS103 family.
  • You are comfortable managing the plugs in the Kasa Smart app.
View Kasa Smart Plug HS103P4 White 4-Pack on AmazonPaid link
When the recommendation changes
  • If you need multiple outlets and rely on Google Assistant, Kasa is the documented fit; if you only need one outlet and already manage devices in Alexa, Amazon’s one-pack and setup may be the simpler fit.
  • If you need a different assistant ecosystem, check that exact platform’s current compatibility before buying; neither choice should be assumed compatible beyond its listed support.

The differences that matter

Assistant Ecosystem Setup

Kasa Smart Plug HS103P4 White 4-Pack

Kasa HS103 family supports the Kasa Smart app, 2.4GHz Wi-Fi and voice control through Alexa or Google Assistant; the manufacturer says no separate hub is required.[1]

Amazon Smart Plug C2YY37 White 1-Pack

The Amazon Smart Plug uses the Alexa app and is described by Amazon as exclusive to Alexa; Amazon says it does not support other voice assistants or smart hubs.[4]

What this changes: Choose around the assistant and app already used in the home: Kasa’s listed Google Assistant support is useful for Google households, while Amazon’s Alexa-only setup fits a home that wants to manage this plug in the Alexa app. Both maker pages say no separate hub is required, so hub count does not distinguish these two.[1, 4]

The better fit depends on your priorities

Purchase Quantity And Outlet Rollout

Kasa Smart Plug HS103P4 White 4-Pack

The Kasa HS103P4 4-pack listing is the 4-pack; the linked HS103 U.S. datasheet specifies that a 4-pack contains four HS103 plugs.[2, 3]

Amazon Smart Plug C2YY37 White 1-Pack

The Amazon product page identifies B089DR29T6 as the 1-pack variation.[4]

What this changes: If you want to equip several lamps or appliances at once, the Kasa pack starts with four plugs; if you only need one outlet, the Amazon Smart Plug 1-pack contains one. Count the outlets you actually plan to automate and compare the current checkout offer for the package you need; pack quantity alone does not establish per-plug value.[2, 3, 4]

The better fit depends on your priorities

Best for your routine

A household planning to automate several outlets and use Alexa or Google Assistant

Best fit: Kasa Smart Plug HS103P4 White 4-Pack

Based on listed features, not comparative testing.

The Kasa HS103P4 package contains four HS103 plugs, and the HS103 family lists both Alexa and Google Assistant support. Check outlet count and current package offer before purchase.

View Kasa Smart Plug HS103P4 White 4-Pack on AmazonPaid link

A household adding one outlet in an Alexa-managed home

Best fit: Amazon Smart Plug C2YY37 White 1-Pack

Based on listed features, not comparative testing.

The Amazon Smart Plug listing is a one-pack and its product page describes Alexa-app setup and exclusive Alexa use.

View Amazon Smart Plug C2YY37 White 1-Pack on AmazonPaid link

Value and trade-offs

One or both observed offers have eligibility conditions, so no unrestricted price difference is shown.

No matched, current checkout comparison is included. Compare the live offers for the exact pack sizes and count how many outlets you intend to automate.

Check current checkout prices and package sizes before choosing; no price-history timing recommendation is available.

Limitations

  • This is a comparison of manufacturer-listed setup and package information; no hands-on setup, reliability or device-control testing was performed.
  • The HS103P4 support page lists multiple hardware revisions. The hardware revision of the Kasa HS103P4 plug delivered is not identified, so check the plug label and matching manual if revision-specific requirements matter.
  • The official HS103 datasheet specifies four plugs in its 4-pack and the HS103P4 support page links that HS103 datasheet. Check the retailer variation and current box contents at checkout.
  • Confirm the connected appliance’s requirements and current manufacturer instructions before use; this comparison does not evaluate electrical load suitability or safety for a particular appliance.
  • No live seller, availability, delivery, return or matched price comparison is provided.
  • The comparison describes listed feature fit only; it does not establish connection reliability, response speed or long-term performance.

Questions shoppers ask

Does the Kasa HS103P4 package contain four plugs?

The HS103P4 listing is the four-pack, and TP-Link’s linked U.S. HS103 datasheet says the 4-pack contains four HS103 plugs. The HS103P4 support page lists several hardware versions, so check the selected package label and its matching guide if revision-specific details matter.

Can I use either plug with Google Assistant?

Kasa lists Alexa and Google Assistant support for the HS103 family. Amazon says this Smart Plug is exclusive to Alexa and does not support other voice assistants or smart hubs. Check current platform support if you need a different ecosystem.

Does either one require a separate smart-home hub?

The Kasa HS103 family page says no separate hub is required, and Amazon’s product page also says no smart-home hub is required. Both still require their listed app and a compatible home setup.

Methodology and sources

Compared the manufacturers’ U.S. setup and assistant descriptions, Amazon’s product listing for the C2YY37 model, TP-Link’s HS103P4 support page, and its linked U.S. HS103 datasheet for package quantity. No response-time, reliability or safety-performance winner is claimed.

Automation assisted with organizing source notes and drafting. No hands-on setup or testing was performed.

View 5 sources
  1. 1.Kasa Smart Wi-Fi Plug Mini (HS103)Kasa Smart / TP-Link · Official specifications · Source checked 2026-10-03 14:37 UTC
    Evidence used on this page
    • Page variants at lines 2–16 include HS103P4; Features lines 37–58 describe remote app control, secured 2.4GHz Wi-Fi, Alexa and Google Assistant voice control, no separate hub, and schedules; compact design lines 49–51 and 66–68 says two plugs can stack in one wall outlet.: The U.S. HS103 family page explicitly shows HS103P4 as a variant. It describes use of the Kasa Smart app, secured 2.4GHz Wi-Fi, Alexa and Google Assistant voice control, no separate hub, and schedules/scenes. This is a family-level page and does not identify the hardware version for a particular retail ASIN.
  2. 2.Download for HS103P4 V5.80TP-Link · Official specifications · Source checked 2026-10-03 14:37 UTC
    Evidence used on this page
    • Page heading and hardware version selector lines 512–529 identify HS103P4 and list V5.80, V5.60, V5.46, V5, V3.80, V3; product overview section lines 530–539 links HS103 (US) datasheet and manuals. The page warns model/version availability varies by region.: The U.S. TP-Link support page is specifically for HS103P4 and links the HS103 (US) datasheet and user guides. It lists multiple hardware versions and cautions that model and version availability varies by region; the hardware revision for a particular retail offer is not identified here.
  3. 3.HS103(US)5.0_DatasheetTP-Link · Official specifications · Source checked 2026-10-03 14:37 UTC
    Evidence used on this page
    • PDF physical page 4 (web PDF page P3), Package Contents lines 41–46: 4-Pack includes four HS103 plugs and one Quick Start Guide. The linked U.S. HS103P4 support page points to this product overview. Datasheet also describes HS103 app control, voice control, 2.4GHz Wi-Fi and no hub on pages 1–4.: The HS103 U.S. datasheet says its 4-pack contains four HS103 Smart Wi-Fi Plug Minis and one Quick Start Guide. TP-Link’s HS103P4 U.S. support page links this HS103 datasheet. This supports a four-plug rollout count; it does not establish the hardware revision of a particular retail ASIN.
  4. 4.Amazon Smart Plug, Works with Alexa, Simple Setup, Endless PossibilitiesAmazon · Official support · Source checked 2026-10-03 14:37 UTC
    Evidence used on this page
    • The Amazon product page’s size variation identifies ASIN B089DR29T6 as 1-pack (page listing variant data around lines 3176 and 3302–3311); feature text lines 3495–3498 and 9076 says setup uses Alexa app, no hub required, exclusive use with Alexa, and no support for other voice assistants or smart hubs.: Amazon’s U.S. product page identifies ASIN B089DR29T6 as the 1-pack and describes setup through the Alexa app, no smart-home hub requirement, and exclusive Alexa use with no other voice assistants or smart hubs. These are the Amazon Smart Plug’s setup and ecosystem facts.
  5. 5.Amazon Smart Plug Safety & ComplianceAmazon · Official support · Source checked 2026-10-03 14:37 UTC
    Evidence used on this page
    • Device name and model at lines 66–68 identify Amazon Smart Plug model C2YY37; product specifications at lines 80–104 list model number and U.S. electrical/connectivity information.: Amazon’s official safety and compliance page identifies the Amazon Smart Plug as model C2YY37. It provides the exact model bridge for the Amazon Smart Plug model identity.