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TP-Link Deco S4 vs TP-Link Deco X55

A

Product A: TP-Link

Deco S4

49 of 90 known

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B

Product B: TP-Link

Deco X55

53 of 90 known

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All 90 fields

Every value links to where we found it.

Only differences

ATP-Link Deco S4

BTP-Link Deco X55

General

1 of 9 differ

Series

Deco1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026

Deco1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

Deco S4, Deco S4(1-pack), Deco S4(2-pack), Deco S4(3-pack)1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026The US page shows hardware version V3.60 and a V1 selector. V1 is the AC1200 Deco S4. This product is the AC1900 hardware, which the US support pages list as V3.26, V3.46 and V3.60. The datasheets give the model as Deco S4 and name the 1, 2 and 3 packs Deco S4 (1-pack), (2-pack) and (3-pack).

Deco X55, Deco X55(1-pack), Deco X55(2-pack), Deco X55(3-pack)1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026The US page is titled Deco X55 and sells 1, 2 and 3 packs. Package Content names them Deco X55 (1-pack), (2-pack) and (3-pack). The support page lists hardware versions V1.60, V1.32, V1.26 and V1. The user guide is for the US V1.6 model.

GTIN / EAN

Not available

Not available

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

Not available

Not available

Status

Available1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026The page, the support downloads and the Amazon US buy link are live. Firmware 1.5.2 is dated 2024-11-14 for V3.60.

Available1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026The page, the support downloads and the Amazon US buy link are live. Firmware 1.11.1 is dated 2026-09-28.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

Not available

Not available

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

US1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026TP-Link US site.

US1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026TP-Link US site.

ColoursiThe maker's own colour names

White8Retailer pageamazon.com/dp/B084GTH5LLRead 20 October 2026Color: White. The listing title says TP-Link Deco S4 Mesh AC1900 WiFi System, Deco S4(3-Pack). The listing has one ASIN for several hardware versions and lists three Deco S4R units in the box, so its hardware facts are not used. It lists two UPCs (840460605014 and 845973089726), which cannot be tied to one version, so no GTIN is stored.

Not available

Form factoriMesh system is a product line sold in packs of mesh units, e.g. eero, Deco and Orbi. A standalone router that can join a mesh as an option is a router. A travel router is a pocket-size router sold for travel.

Mesh system1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Whole Home Mesh Wi-Fi System sold as 1, 2 and 3 packs. All Decos work together, and each unit in a Deco S4 pack is the same.

Mesh system1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026Whole Home Mesh WiFi 6 System. The packs hold identical Deco X55 units.

SegmentiThe maker's own product category, e.g. ASUS ROG is Gaming and ASUS ExpertWiFi is Business. It is not assigned from price or features.

Home1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Listed under Mesh WiFi, for home.

Home1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026Listed under Mesh WiFi, for home.

Wi-Fi

10 of 14 differ

Wi-FiiThe newest Wi-Fi generation the product supports.

Wi-Fi 51Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026

Wi-Fi 61Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026

Wi-Fi speed classiThe maker's class name, e.g. BE19000 or AXE11000. It adds up the top link rates of all radios. No single device reaches it. A Wi-Fi 6E class starts with AXE, also when the maker writes AX, so eero's AX5400 is AXE5400. The class is not the model number, so GL.iNet's GL-AXT1800 is AX1800.

AC19001Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026WiFi Speeds row: AC1900, 5 GHz 1300 Mbps (802.11ac) and 2.4 GHz 600 Mbps (802.11n).

AX30001Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026WiFi Speeds row: AX3000, 5 GHz 2402 Mbps (802.11ax, HE160) and 2.4 GHz 574 Mbps (802.11ax).

Wi-Fi radiosiOne row per radio in one unit. A quad-band unit with two 5 GHz radios has two 5 GHz rows.

ATP-Link Deco S4

Band	Wi-Fi	Streams	Max channel width (MHz)	Max link rate (Mbps)	Dedicated backhaul
2.4 GHz	Wi-Fi 4	3	40	600	No
5 GHz	Wi-Fi 5	3	80	1,300	No

Source1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Standards row: 802.11ac/n/a on 5 GHz and 802.11n/b/g on 2.4 GHz. The page names 3x3 MU-MIMO and 3 internal antennas, so 3 streams are stored for both bands. The page prints no channel width. A 3x3 radio reaches 1300 Mbps only at 80 MHz (3 x 433.3) and 600 Mbps in the 2.4 GHz band only at 40 MHz with 256-QAM (3 x 200), so 80 and 40 are stored. The page shows no third radio, and its mesh diagram shows a dedicated backhaul only for other Deco models, so dedicated_backhaul is false.4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026Datasheet Deco S4(US) V3.6: signal rate 1300 Mbps at 5 GHz and 600 Mbps at 2.4 GHz, 802.11 a/n/ac on 5 GHz and b/g/n on 2.4 GHz.

BTP-Link Deco X55

Band	Wi-Fi	Streams	Max channel width (MHz)	Max link rate (Mbps)	Dedicated backhaul
2.4 GHz	Wi-Fi 6	2	Not available	574	No
5 GHz	Wi-Fi 6	2	160	2,402	No

Source1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026Standards row: Wi-Fi 6 on both bands. Highlights: 2x2/HE160 2402 Mbps + 2x2 574 Mbps and 4 Streams, so 2 streams per band. The page prints no channel width for 2.4 GHz, so none is stored for that band. The footnote says the 160 MHz bandwidth may be unavailable in the 5 GHz band in some regions. No band is a dedicated backhaul, because Dual-Band distributes devices to different bands and the system has no third radio.2Maker spec sheet (PDF)tp-link.com/us/document/80562Read 14 October 2026Datasheet Deco X55(US) V1: signal rate 574 Mbps on 2.4 GHz and 2402 Mbps on 5 GHz.

Radio bandsiRadios that work at the same time in one unit. Tri-band is 3 and quad-band is 4, also when two radios use the same frequency band.

2=CalculatedFrom Wi-Fi radios

2=CalculatedFrom Wi-Fi radios

6 GHz band

No=CalculatedFrom Wi-Fi radios

No=CalculatedFrom Wi-Fi radios

Combined Wi-Fi link rateiSum of the top link rates of all radios in one unit. It is close to the number in the speed class. No single device reaches it.

1,900Mbps=CalculatedFrom Wi-Fi radios

2,976Mbps=CalculatedFrom Wi-Fi radios

Wi-Fi streamsiSpatial streams of all radios in one unit, e.g. 12 for a tri-band router with 4x4 on each band.

6=CalculatedFrom Wi-Fi radios

4=CalculatedFrom Wi-Fi radios

Max Wi-Fi channel widthiWidest channel of any radio, e.g. 320 on the 6 GHz band.

80MHz=CalculatedFrom Wi-Fi radios

160MHz=CalculatedFrom Wi-Fi radios

Wi-Fi featuresiFeatures the maker names for the product. Band steering puts all bands under one network name and moves devices between them, e.g. Smart Connect. Band steering over only some of the bands, such as 2.4 and 5 GHz on a tri-band router, counts. AFC is Automated Frequency Coordination, which allows standard power on 6 GHz. Support that needs a later firmware counts, and the firmware goes in the source note.

MU-MIMO, Beamforming1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026WiFi Capacity row lists MU-MIMO and Beamforming. The Dual-Band entry says devices are distributed to different bands, but the maker does not name band steering, so it is not stored.

OFDMA, MU-MIMO, Beamforming1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026WiFi Capacity row: 2x2 MU-MIMO, OFDMA and Beamforming. 1024-QAM and BSS Color are named but have no option. The page does not name band steering, so it is not stored.

External antennasiAntennas outside the case, as the maker counts them.

01Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026The antennas are internal, so there are none outside the case.

01Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 20262x Antennas (Internal).

Internal antennasiAntennas inside the case, as the maker counts them.

31Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 20263x Antennas (Internal).4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026Antenna Type: 3 internal dual-band antennas per Deco unit.

21Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 20262x Antennas (Internal).2Maker spec sheet (PDF)tp-link.com/us/document/80562Read 14 October 2026Antenna: 2 internal antennas.

Detachable antennasiThe external antennas screw off and can be replaced. Fixed antennas that only fold or turn do not count.

No1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Internal antennas cannot be removed.

No1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026The antennas are internal, so they cannot be removed.

Coverage of one unit (claimed)iThe maker's claimed area that one unit covers. A square feet claim is converted exactly and rounded to a whole m². A claim for a whole pack is stored separately. An area that a trusted review quotes from the maker counts, and the source note names the review.

195m²1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Overview text: up to 2,100 sq. ft. for the 1-pack. Converted with 0.09290304 to 195.1 and rounded to 195 m2. The pack pages give 3,900 sq. ft. for the 2-pack and 5,600 sq. ft. for the 3-pack. Amazon and older TP-Link pages say 5,500 sq. ft. for the 3-pack. The maker's V3.60 page and datasheet are used.

Not available

Connected devices per unit (claimed)iThe maker's claimed maximum number of devices one unit serves. A claim for a whole mesh pack is not stored here.

1001Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Published as over 100 devices (Connect 100+ Devices). Stored as 100, the plus sign is dropped. The footnote says the number is not guaranteed.

1501Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026Connects over 150 devices. The footnote says the figure is not guaranteed. The maker states it for the product and not per pack.

Ports and modem

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PortsiData ports on the main unit. The power input is not a port. A combo port takes an RJ45 cable or an SFP+ module and is counted once. WAN or LAN means the maker says the port can be either, including auto-sensing ports.

ATP-Link Deco S4

Port	Count	Role	Max speed (Gbps)
RJ45	3	WAN or LAN	1

Source1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Ethernet Ports: 3x Gigabit Ports per Deco unit, WAN/LAN auto-sensing. Only one port can serve as WAN at a time. No USB port is listed. The Amazon listing says 2 ports, which conflicts with the maker's page, datasheet and user guide. The maker is used.4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026Port: 3 WAN/LAN Gigabit Ethernet ports per Deco unit, 1 power port.5Owner's manualtp-link.com/us/document/30120Read 20 October 2026Appearance: three RJ-45 Ethernet ports, a power slot and a reset button on each Deco.

BTP-Link Deco X55

Port	Count	Role	Max speed (Gbps)
RJ45	3	WAN or LAN	1

Source1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026Ethernet Ports: 3x Gigabit ports per Deco unit. Supports WAN/LAN auto-sensing. No USB port is listed.

Ethernet portsiRJ45 ports of all roles, WAN and LAN.

3=CalculatedFrom Ports

3=CalculatedFrom Ports

Multi-gig portsiWired network ports of 2.5 Gbps or faster, RJ45 or fiber.

0=CalculatedFrom Ports

0=CalculatedFrom Ports

Fastest WAN portiThe fastest port that can take the internet connection.

1Gbps=CalculatedFrom Ports

1Gbps=CalculatedFrom Ports

Fastest LAN portiThe fastest port for wired devices. A port that can be WAN or LAN counts here too.

1Gbps=CalculatedFrom Ports

1Gbps=CalculatedFrom Ports

USB ports

0=CalculatedFrom Ports

0=CalculatedFrom Ports

SFP+ portiA slot for a 10 Gbps fiber or DAC module.

No=CalculatedFrom Ports

No=CalculatedFrom Ports

Built-in modemiModems inside the router. A port for an external modem does not count. A fiber slot counts only when the fiber module is in the box.

Not available

Not available

Modem standardsiStandards of the built-in modem as published, e.g. DOCSIS 3.1, VDSL2 35b, GPON or 5G NR.

Not available

Not available

Mesh

1 of 7 differ

Mesh technologiesiMesh systems the unit can join, by the maker's name, e.g. AiMesh, EasyMesh or TP-Link OneMesh.

Deco Mesh1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Page text: advanced Deco Mesh Technology. It also uses the name TP-Link Mesh. The optional Ethernet backhaul links the units.

Deco Mesh1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026WiFi Range row: TP-Link Mesh Technology with optional Ethernet backhaul. The datasheet calls it Deco Mesh Technology.

Units per packiUnits in the box. The base lists every pack size sold. Each pack variant holds its own. A standalone router is 1.

1, 2, 31Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026

1, 2, 31Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 20261-pack, 2-pack and 3-pack.

Coverage of the pack (claimed)iThe maker's claimed area for a whole pack. Each pack variant holds its own claim. The claims of single units are never added up.

195 to 520m²1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 20262Maker product pagetp-link.com/us/deco-mesh-wifi/product-family/deco-s4/v3.6%20(2-pack)Read 20 October 20263Maker product pagetp-link.com/us/deco-mesh-wifi/product-family/deco-s4/v3.6%20(3-pack)Read 20 October 20264Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026

Not available

Identical unitsiEvery unit in a pack is the same model, so any unit can be the router. Not true for systems with a separate satellite model, such as NETGEAR Orbi.

Yes1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026

Yes1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026Package Content lists 2 or 3 Deco X55 units. All Decos work together.

Satellite modeliModel number of the satellite when it differs from the router unit.

Not available

Not available

Satellite portsiData ports on one satellite. Only when the satellite differs from the router unit.

Not available

Not available

Ethernet backhauliMesh units can link to each other over an Ethernet cable.

Yes1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Wireless connections and an optional Gigabit Ethernet backhaul link the Deco units.

Yes1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026Wireless connections and optional Ethernet backhaul link the Deco units.

Software

2 of 7 differ

ManagementiWays to set up and manage the router. A web interface is a full settings page in a browser on the local network. A status page alone does not count.

Mobile app1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Management Features: Deco App. The page lists web server port 80/443 as a default network service, which is not a settings page.4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026Management: Local Management, Remote Management, Multi-Managers. The datasheet names no web interface.5Owner's manualtp-link.com/us/document/30120Read 20 October 2026Setup and use are described through the Deco app for iOS and Android.

Mobile app1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026Management Features: Deco App. The page's web server entry is a service port and not a settings page.2Maker spec sheet (PDF)tp-link.com/us/document/80562Read 14 October 2026Management: Local Management, Remote Management, Multi-Managers. The datasheet names no web interface.3Owner's manualtp-link.com/us/document/80590Read 14 October 2026Setup and use are described through the Deco app for iOS and Android.

Online account requirediSetup and management need an online account with the maker, with no local way around it.

Yes5Owner's manualtp-link.com/us/document/30120Read 20 October 2026Setup step 2 of the user guide (REV3.6.0): log in or sign up with a TP-Link ID in the Deco app.

Yes3Owner's manualtp-link.com/us/document/80590Read 14 October 2026Setup step 2 of the user guide (REV1.30.0): log in or sign up with a TP-Link ID in the Deco app.

Operating modesiModes the maker lists. Media bridge connects wired devices to another router over Wi-Fi. Extender, range extender and WDS modes count as repeater.

Router, Access point1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Working Modes: Router Mode and Access Point Mode.4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026

Router, Access point1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026Working Modes: Router Mode, Access Point Mode.

Network featuresiFeatures the maker lists that work without a paid subscription. An IoT network is a separate network for smart home devices. Dual WAN uses a second internet connection as a backup or to share the load. Only features the maker clearly says are free. Parental controls counts when a free feature pauses or schedules internet access per person or device, such as eero Profiles, even when content filters need a subscription. When the maker's pages contradict each other, leave the feature out.

Guest network, IoT network, IPTV, Dynamic DNS1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Guest Network 1x 5 GHz and 1x 2.4 GHz. IPTV: IGMP proxy, IGMP snooping, bridge, tag VLAN. DDNS: TP-Link. The IoT network comes from the firmware notes on the support page. Tag VLAN is part of IPTV, so VLAN is not stored. The page lists QoS by Device and Parental Controls (URL filtering, time controls). It names no subscription, but the Deco app also sells HomeShield tiers and no maker page says which Deco S4 features are free, so qos and parental_controls are not stored.4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026Guest Network 2.4 GHz x1 and 5 GHz x1. Features list TP-Link DDNS and VLAN.6Maker product pagetp-link.com/us/support/download/deco-s4/v3.60Read 20 October 2026Firmware 1.5.2 (build 20240927, published 2024-11-14) release notes: added IoT network function, NO-IP and DynDNS support, client isolation and static routes.

Guest network, IoT network, IPTV, Dynamic DNS1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026Guest Network: 1x 5 GHz and 1x 2.4 GHz. Advanced Features: IoT network and device isolation. IPTV: IGMP proxy and snooping, bridge, tag VLAN. DDNS: TP-Link. Tag VLAN is part of IPTV, so VLAN is not stored. QoS and parental controls are sold as HomeShield features and the maker's HomeShield page is unclear on what is free, so they are not stored.2Maker spec sheet (PDF)tp-link.com/us/document/80562Read 14 October 2026Guest Network 2.4 GHz x1 and 5 GHz x1. Features list IPTV and TP-Link DDNS.

VPN serveriProtocols the router can serve, to reach the home network from outside. A paid VPN service is not a VPN server.

Not available

OpenVPN, PPTP, L2TP1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026VPN Server: Open VPN, PPTP and L2TP/IPSec. Stored as l2tp. The Deco app guide also names WireGuard for the Deco app generally, but the product page does not list it for the X55.

VPN clientiProtocols the router can use to connect to an outside VPN server.

Not available

OpenVPN, PPTP, L2TP1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026VPN Client: Open VPN, PPTP and L2TP/IPSec. Stored as l2tp.

USB applicationsiWhat the USB port can be used for. Cellular modem is a USB 4G or 5G modem used as an internet connection or backup.

Not available

Not available

Security

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Wi-Fi securityiEnhanced Open encrypts an open network without a password.

WPA2-Personal, WPA3-Personal1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026WiFi Encryption row: WPA-Personal and WPA2-Personal. WPA3 comes from the V3.60 firmware 1.5.2 release notes. WPA has no option.4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026Wireless Security: WPA-PSK/WPA2-PSK.6Maker product pagetp-link.com/us/support/download/deco-s4/v3.60Read 20 October 2026Firmware 1.5.2 release notes: support for WPA3.

WPA2-Personal, WPA3-Personal1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026WiFi Encryption: WPA-Personal, WPA2-Personal, WPA3-Personal. The older WPA option is not stored.2Maker spec sheet (PDF)tp-link.com/us/document/80562Read 14 October 2026Wireless Security: WPA/WPA2-PSK/WPA3 encryptions.

Security serviceiThe maker's built-in security service by name, e.g. AiProtection Pro, HomeShield, NETGEAR Armor or eero Plus.

Not available

HomeShield1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026TP-Link HomeShield.

Security service costiWhat the service costs after any free trial. Basic free means the basic features are free and the full set needs a subscription. When the free and paid tiers share one name, such as HomeShield, it is basic free. NETGEAR Armor has no free tier after its trial, so it is paid. When the paid tier is a separate add-on, such as eero Plus, it is paid.

Not available

Basic free, full paid1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026Footnote: HomeShield includes the Free Basic Plan. Fees apply for the Pro Plan. One name for both tiers.9Maker product pagetp-link.com/us/homeshieldRead 14 October 2026The HomeShield page lists a free tier and paid Security+ and Total Security tiers with one HomeShield name. It gives no prices. Basic free is stored.

Automatic firmware updatesiThe router can install firmware updates by itself.

Not available

Yes4Owner's manualtp-link.com/us/document/16144Read 14 October 2026Deco App User Guide (FW1.12.0), setup: set an auto update time so the Deco updates itself to the latest firmware. The guide is listed on the X55 support page. The product page lists OTA Firmware Upgrade.

Security updates untiliPublished end date of security updates for this model. It is not calculated from a number of years. A published minimum date, such as "at least through" or "or later", counts as the stated date. The source note says it is a minimum and names the region.

Not available

31 December 20298Maker spec sheet (PDF)static.tp-link.com/upload/manual/2026/202609/20260907/Statements%20of%20PSTI%20Compliance_TP-Link.pdfRead 14 October 2026UK PSTI statement of compliance, defined support period for Deco X55(3-pack) V1 and V3 (and the 1-pack and 2-pack V3): 31/12/2029 or later. Stored as a minimum date for the UK statement. The statement names hardware versions and not the US V1.6 label.

Smart home

1 of 5 differ

Thread border router

Not available

Not available

Matter controlleriCan add and control Matter devices. Being a Matter device alone does not count.

Not available

Not available

Zigbee hubiA built-in Zigbee radio that controls Zigbee smart home devices.

Not available

Not available

BluetoothiVersion of the Bluetooth radio in the router, often used for setup.

Not available

Not available

Smart home platformsiSmart home and voice platforms the router works with, e.g. Amazon Alexa or Google Home.

Amazon Alexa1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Voice Control: pair with Alexa to control Deco S4 with voice commands.

Not available

Hardware

2 of 6 differ

System on chipiMain chip or platform as published, e.g. Broadcom BCM4916 or Qualcomm Networking Pro 620. A chip maker name alone, such as Broadcom, is not stored.

Not available

Not available

CPU cores

Not available

22Maker spec sheet (PDF)tp-link.com/us/document/80562Read 14 October 2026Features: 1 GHz Dual-Core CPU.

CPU clockiHighest published processor clock.

Not available

1GHz2Maker spec sheet (PDF)tp-link.com/us/document/80562Read 14 October 2026Features: 1 GHz Dual-Core CPU.

RAMiRouter RAM in GB. When any trusted source prints a GB figure, use it, e.g. 1 GB rather than 1024 MB converted. Convert MB with 1000 MB per GB only when MB is the only figure, e.g. 512 MB is 0.512, and keep the original figure in the source note. Same rule as streaming devices.

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Flash storageiBuilt-in flash memory for the firmware in GB. Convert MB with 1000 MB per GB, as for RAM. A memory card or USB drive does not count.

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Cooling faniA fan inside the unit. Passive cooling does not count.

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Power

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Power supplyiHow the main unit gets power. USB is a USB-C power adapter. PoE is power over an Ethernet cable.

External DC adapter4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026A separate power adapter (input 100-240 V, output 12 V DC) plugs into the unit's power port.

External DC adapter1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026The datasheet lists a power adapter with 12 V 1.5 A output and a power port on the unit.

Rated power inputiDevice input rating as published, in volts and amps.

12 V, 1.5 A4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026Power Adapter Output: 12 V 1.5 A. The adapter input is 100-240 V 50/60 Hz 0.6 A. The unit's DC input is the adapter output.

12 V, 1.5 A2Maker spec sheet (PDF)tp-link.com/us/document/80562Read 14 October 2026Power Adapter Output: 12V 1.5A. The adapter input is 100-240V 50-60 Hz 0.6A. The unit's DC input is the adapter output.

Included adapter outputiRated output of the power adapter in the box. This is not power use.

18W4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 202612 V x 1.5 A is 18 W.

18W2Maker spec sheet (PDF)tp-link.com/us/document/80562Read 14 October 202612 V x 1.5 A is 18 W.

Power use (typical, claimed)iThe maker's typical or average power use of one unit. A published range, such as 14 to 16 W, is left out.

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Power use (max, claimed)iThe maker's maximum power use of one unit. Power given out over PoE is not included. A published range, such as 14 to 16 W, is left out. A figure measured with the power adapter counts.

15.7W4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026Power Consumption (with power adapter): 15.7 W max.

18.5W2Maker spec sheet (PDF)tp-link.com/us/document/80562Read 14 October 2026Power Consumption (with power adapter): 18.5 W max.

Measured

None of 6 known

Wi-Fi throughput (measured)iTom's Guide throughput, one row per test position. Tool, client, direction and walls are in the source note. Other reviewers' results go in source notes only.

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Fastest Wi-Fi throughput (measured)iHighest measured row with the client connected to the main unit. Compare only results from the same reviewer.

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Wi-Fi throughput through a wall (measured)iTom's Guide throughput at 25 ft through one wall, with the client on the main unit.

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Range (measured)iDistance at which the reviewer's client lost its connection to the main unit.

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Power use under load (measured)iWall power of the main unit during the reviewer's throughput or saturation test.

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Energy use per day (measured)iEnergy the router used over 24 hours of the reviewer's test use. This is not the power at one moment.

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Dimensions and weight

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DimensionsiOne unit in its normal position, with antennas folded flat or removed. Height is bottom to top. For a round unit, width and depth are both the diameter. A size the maker prints with antennas up goes in Dimensions with antennas.

Width90.7Height162.3Depth90.7mm(3.6 × 6.4 × 3.6 in)1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026The page prints 162.3 x 90.7 x 90.7 mm under the label W x D x H, which is a mislabel. The datasheet and the Amazon listing give the height as 162.3 mm. Stored as height 162.3 and a 90.7 mm square footprint.4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026Dimensions (H x L x W): 6.4 x 3.6 x 3.6 in. (162.3 x 90.7 x 90.7 mm).8Retailer pageamazon.com/dp/B084GTH5LLRead 20 October 2026Item dimensions 3.57 in L x 3.57 in W x 6.39 in H, which agrees with the datasheet (90.7 x 90.7 x 162.3 mm).

Width110Height114Depth110mm(4.3 × 4.5 × 4.3 in)1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026Dimensions (W x D x H): 4.33 x 4.33 x 4.49 in (110 x 110 x 114 mm). The unit is a round cylinder.2Maker spec sheet (PDF)tp-link.com/us/document/80562Read 14 October 20264.33 x 4.33 x 4.49 in (110 x 110 x 114 mm).

Dimensions with antennasiOne unit with its external antennas up, as the maker prints it.

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WeightiOne unit without power adapter and cables.

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Wall mountableiThe maker says the unit can be mounted on a wall.

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Certifications

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Wi-Fi Alliance certification IDiCertificate ID in the Wi-Fi Alliance product finder.

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FCC IDiFCC ID of the main unit.

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Other certifications

FCC, RoHS1Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026Certification: FCC.4Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026

CE, FCC, RCM1Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026Certifications: CE, FCC, RCM.

In the box

None of 1 known

In the boxiItems as the maker lists them for the exact pack.

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Links

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Product page

www.tp-link.com/us/home-networking/deco/deco-s41Maker product pagetp-link.com/us/home-networking/deco/deco-s4Read 20 October 2026

www.tp-link.com/us/home-networking/deco/deco-x551Maker product pagetp-link.com/us/home-networking/deco/deco-x55Read 14 October 2026

Spec sheet

www.tp-link.com/us/document/301234Maker spec sheet (PDF)tp-link.com/us/document/30123Read 20 October 2026

www.tp-link.com/us/document/805622Maker spec sheet (PDF)tp-link.com/us/document/80562Read 14 October 2026

Manual

www.tp-link.com/us/document/301205Owner's manualtp-link.com/us/document/30120Read 20 October 2026

www.tp-link.com/us/document/805903Owner's manualtp-link.com/us/document/80590Read 14 October 2026

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

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Warranty

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Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

2years7Maker product pagetp-link.com/us/support/replacement-warrantyRead 20 October 2026Warranty periods for products purchased on or after 9/1/2023: Whole Home Wi-Fi / Mesh Wi-Fi / Deco, 2 years. US site. The Amazon US listing also says 2 year manufacturer.

2years7Maker product pagetp-link.com/us/support/replacement-warrantyRead 14 October 2026Warranty periods for products purchased on or after 9/1/2023: Whole Home Wi-Fi / Mesh Wi-Fi / Deco, 2 years. US site.

Both are also in the API. Back to all routers.