Fanvil X301 vs X303 vs X4U: Which IP Phone Fits Your Office?
Fanvil X301 vs X303 comes down to three things: the screen, the number of SIP accounts and line keys, and the speed of the PC port. The X4U sits above both for anyone who transfers calls all day. Each series also comes in P, G and W versions, and that letter changes how the phone connects and is powered. This guide compares the seven models Misbar stocks, using figures from Fanvil's official pages, and tells you which phone fits which desk.
Quick comparison: all seven models
| Model | Screen | SIP accounts | Network | Power |
| X301P | 2.3" mono | 2 | 10/100 | PoE |
| X301G | 2.3" mono | 2 | Gigabit | PoE |
| X301W | 2.3" mono | 2 | 10/100 + Wi-Fi | 5V/1A adapter only |
| X303P | 2.4" colour | 4 | 10/100 | PoE |
| X303G | 2.4" colour | 4 | Gigabit | PoE |
| X303W | 2.4" colour | 4 | 10/100 + Wi-Fi | PoE or 5V/1A adapter |
| X4U | 2.8" + 2.4" colour | 12 | Gigabit | PoE |
In short: the X301P suits most staff desks, the X303P suits anyone handling more than one line, and the X4U is for the receptionist or secretary who transfers calls. Pick a G model when the PC sits behind the phone and needs gigabit, and a W model when no network cable reaches the desk.
Fanvil X301 vs X303: the 3 real differences
- Screen: the X301 has a 2.3-inch backlit mono display, enough for caller ID and menus. The X303 has a 2.4-inch 320×240 colour screen, so names and line status read faster.
- Accounts and line keys: the X301 has 2 SIP accounts; the X303 has 4, plus 3 LED line keys. One look at the keys tells you which line is ringing or on hold, which matters for sales and support staff who answer the company number and their direct line.
- Key count: the X301 has 33 keys and the X303 has 36. The difference is those 3 line keys.
What both series share: 6-party local conferencing, HD audio with G.722 and Opus, a 1,000-entry phonebook, support for Poly and Jabra EHS wireless headsets, and L2TP and OpenVPN for branch phones.
What P, G and W mean
- P: two 10/100 Mbps ports with PoE. The lowest-cost version, fine when the PC connects directly or doesn't need more than 100 Mbps.
- G: two gigabit 10/100/1000 Mbps ports with PoE, so the PC behind the phone keeps full gigabit speed.
- W: built-in Wi-Fi on 2.4 and 5 GHz, no network cable needed. Note that the X301W runs on a 5V/1A adapter only, with no PoE, while the X303W runs on PoE or the adapter.
Fanvil X301 series: the two-account staff phone
The Fanvil X301P is the phone for fitting out dozens of desks on a sensible budget. It runs from a PoE switch at no more than 1.86 W, has 9 fixed function keys for hold, transfer, conference and voicemail, and keeps a 600-call log.
If the user moves large files or works in cloud systems from a PC behind the phone, the X301G keeps the same screen and two accounts with gigabit ports. The X301W is for a desk with no cable, such as a room added later: it joins the Wi-Fi and only needs a power socket.
[cta:92053492]
Fanvil X303 series: colour screen and 4 accounts
The Fanvil X303P suits sales, customer service and admin desks. Its 3 LED line keys keep the main line apart from your direct line, and the colour screen shows the caller clearly. It runs on PoE; there is no adapter in the box if you don't have a PoE switch.
The X303G adds gigabit ports and 802.3af PoE, plus management features IT teams in larger companies want: SNMP, an XML browser, multicast paging, and a backup SIP server the phone fails over to. The X303W adds dual-band Wi-Fi with 802.11ac on 5 GHz.
In an older building wired for regular phones, the X303-2 Wire runs over the existing two-wire phone cabling with a Fanvil PN8 or PN24 switch, so you move to IP phones without new network cabling.
[cta:1290279920]
Fanvil X4U: for reception, assistants and managers
The Fanvil X4U is built for whoever transfers calls all day. A 2.8-inch colour main screen handles calls, and a second 2.4-inch colour screen labels the DSS keys: 6 LED keys, up to 30 across 5 pages. Program each key for a colleague's extension to see whether they are free or busy and transfer with one press when your PBX supports BLF.
- 12 SIP accounts, so several departments' lines fit on one phone.
- Two gigabit ports with PoE and a 1,000-call log.
- A USB 2.0 port for recording calls to a flash drive and for the BT20 Bluetooth or WF20 Wi-Fi dongles. The dongles are not built in and are sold separately.
- 6-party conferencing and HD audio with Opus.
If the front desk needs more lines and keys, step up to the Fanvil X5U with 16 SIP accounts and built-in Bluetooth, or the X6U with three screens, 20 SIP accounts and up to 60 DSS keys.
[cta:1754421746]
Power: PoE or adapter?
Every model except the X301W runs on PoE, so one network cable from a PoE switch carries both power and data and no desk needs a socket. Without a PoE switch, each phone needs an adapter: 5V/0.6A for the P and G versions of the X301 and X303, 5V/1A for the W versions, and 5V/2A for the X4U. The adapter is optional and not in the box.
PBX compatibility
Fanvil phones use SIP, so they register on any IP PBX that supports it, on-premise or cloud. Fanvil's official documents list the X301 and X303 series as compatible with Yeastar P-Series, Yeastar Cloud PBX, 3CX and PortSIP. When you are fitting out dozens of desks, Auto Provisioning configures every phone from the PBX in one go instead of one by one.
4 common mistakes when buying Fanvil desk phones
- A 10/100 phone in front of a fast PC: a PC behind an X301P or X303P is capped at 100 Mbps. If it needs more, choose the X301G or X303G.
- Buying the X301W for a desk with a PoE switch: it does not take PoE and always needs a power socket. Where a cable is available, the X301P or X301G is the better fit.
- Forgetting the adapter: without a PoE switch, budget one adapter per phone, as none comes in the box.
- No DSS keys at reception: a receptionist who transfers calls needs to see colleagues' status, which is what the key screen on the X4U is for.
Buy Fanvil phones from Misbar Alhasibat
Misbar stocks the Fanvil X301 and X303 series in P, G and W versions, the X4U, X5U and X6U, and the rest of our desk IP phones. Add the PoE switches that power them over one cable and the PBX systems they register on. Browse every Fanvil product on the brand page.
Prices on the store are final and include VAT, and you can split the payment with Tabby. Not sure how to split models across your departments? Message us on WhatsApp.
Browse all desk IP phones at Misbar →
FAQ
What is the difference between the Fanvil X301P and X303P?
The X303P has a 2.4-inch colour screen, 4 SIP accounts and 3 LED line keys. The X301P has a 2.3-inch mono screen and 2 SIP accounts with no line keys. Both have 10/100 ports, PoE and 6-party conferencing.
When should I choose the X303G over the X303P?
When the PC sits behind the phone and needs more than 100 Mbps. The X303G has gigabit ports and adds SNMP and a backup SIP server.
Does the Fanvil X4U have Bluetooth?
Not built in. It supports Bluetooth through the BT20 dongle and Wi-Fi through the WF20 dongle in its USB port, both sold separately. The X5U has Bluetooth built in.
Do Fanvil phones work with Yeastar or Grandstream PBXs?
Fanvil phones work with any PBX that supports SIP. Fanvil's documents list the X301 and X303 as compatible with Yeastar P-Series, Yeastar Cloud PBX and 3CX, and they register on Grandstream UCM like any SIP phone.
Does the phone come with a power adapter?
No. The adapter is optional on these models and the phone runs straight from a PoE switch, except the X301W, which always needs a 5V/1A adapter.
Which phone should you choose?
- Large numbers of staff desks: the X301P.
- A PC behind the phone that needs gigabit: the X301G, or the X303G for 4 accounts.
- Sales and customer service: the X303P with its colour screen and line keys.
- A desk with no network cable: the X303W, or the X301W if two accounts are enough.
- Reception, assistants and managers: the X4U with its DSS key screen and 12 accounts.