TP-Link Deco S4 AC1900 Mesh Wi-Fi System, 3-Pack vs TP-Link Deco X55 AX3000 Wi-Fi 6 Mesh System, 3-Pack
These are side-by-side facts taken from each product guide: published specifications, strengths and caveats as their sources state them. This page is not a test, a ranking or a verdict about which model is better.
TP-Link Deco S4 AC1900 Mesh Wi-Fi System, 3-Pack
A basic whole-home mesh where Wi-Fi 5 and WPA2 are enough
Three AC1900 Wi-Fi 5 units that form one network name, with optional wired backhaul and both router and access-point modes. TP-Link's spec lists WPA and WPA2 only, no WPA3, and names no subscription for the parental controls. The listing and TP-Link disagree on how many Ethernet ports each unit has.
Published specifications
- Maker: Wi-Fi 5 dual-band; 5 GHz 1300 Mbps + 2.4 GHz 600 Mbps, 3x3 MU-MIMO
- Maker: 3x Gigabit WAN/LAN ports per unit; listing says 2 per unit, 6 per 3-pack
- Maker: Wi-Fi encryption WPA-Personal and WPA2-Personal; WPA3 not listed
- Maker: optional Ethernet backhaul; Router and Access Point modes
- Maker: coverage up to 2,100 sq ft for a 1-pack; listing says 5,500 sq ft for three units
- TP-Link warranty page: 2 years for Deco, original purchaser, proof of purchase and serial
Strengths
- Parental controls and QoS are listed with no subscription or paid tier named for this model
- Optional Gigabit Ethernet backhaul, and the system can run as a router or an access point
- Firmware updates arrive over the air through the Deco app
Caveats
- TP-Link's spec lists no WPA3 support for this model
- TP-Link says three Ethernet ports per unit while the listing says two
- Wi-Fi 5 only, so none of the Wi-Fi 6 capacity features are listed
Read the full TP-Link Deco S4 AC1900 Mesh Wi-Fi System, 3-Pack guide
TP-Link Deco X55 AX3000 Wi-Fi 6 Mesh System, 3-Pack
A wired-or-wireless mesh where every unit also needs Ethernet ports
Three identical AX3000 Wi-Fi 6 units, each with three auto-sensing Gigabit ports and support for optional Ethernet backhaul. TP-Link claims up to 6,500 sq ft and over 150 devices for the 3-pack, with its own footnote that those are not guaranteed. Setup needs the Deco app and a TP-Link ID.
Published specifications
- Maker: Wi-Fi 6 dual-band; 5 GHz 2402 Mbps (HE160) + 2.4 GHz 574 Mbps, 4 streams
- Maker: 3x Gigabit ports per unit with WAN/LAN auto-sensing; optional Ethernet backhaul
- Maker: WPA-Personal, WPA2-Personal and WPA3-Personal encryption
- Maker: Router and Access Point modes; several advanced features disabled in AP mode
- Maker: operating temperature 0C to 40C; indoor use only; 4.33 x 4.33 x 4.49 in per unit
- TP-Link warranty page: 2 years for Deco, original purchaser, proof of purchase and serial
Strengths
- Three Gigabit ports on every unit, any of which can take the internet feed
- Optional wired backhaul is supported, and any unit can be promoted to main without a reset
- TP-Link states the X55 will mesh with every other Deco model, so you can add cheaper or faster units later
Caveats
- HomeShield's Real-Time Protection is a paid Pro feature per TP-Link's own user guide
- Setup requires a TP-Link ID account, not just the app
- Only one Ethernet cable ships with the three-pack, and coverage figures are unguaranteed claims
Read the full TP-Link Deco X55 AX3000 Wi-Fi 6 Mesh System, 3-Pack guide
How to choose between them
Choose the TP-Link Deco S4 AC1900 Mesh Wi-Fi System, 3-Pack if your situation matches: A basic whole-home mesh where Wi-Fi 5 and WPA2 are enough. Its main caveat: TP-Link's spec lists no WPA3 support for this model.
Choose the TP-Link Deco X55 AX3000 Wi-Fi 6 Mesh System, 3-Pack if your situation matches: A wired-or-wireless mesh where every unit also needs Ethernet ports. Its main caveat: HomeShield's Real-Time Protection is a paid Pro feature per TP-Link's own user guide.
Both entries repeat what each guide records. Confirm the model, included parts and availability on the current listing before ordering.
Primary sources
- TP-Link product page for the Deco S4 with the full specification table Source for TP-Link Deco S4 AC1900 Mesh Wi-Fi System, 3-Pack
- TP-Link US Replacement and Warranty policy, including the Deco warranty term Source for TP-Link Deco S4 AC1900 Mesh Wi-Fi System, 3-Pack and TP-Link Deco X55 AX3000 Wi-Fi 6 Mesh System, 3-Pack
- TP-Link product page for the Deco X55 v1 with the full specification table Source for TP-Link Deco X55 AX3000 Wi-Fi 6 Mesh System, 3-Pack
- TP-Link Deco X55 User Guide (1910013075 REV1.0.0) supplied with the listing Source for TP-Link Deco X55 AX3000 Wi-Fi 6 Mesh System, 3-Pack
Primary sources checked .