The fiber and mobile combos are one of the main hooks of the telephone companies, and adorning them with cheaper additional mobile lines (or ‘free’) has become a common trend to try to unify under the same bill, the more family members, the better.
But the rates for additional lines are subject to contracting certain combinations, so talking only about the price of these lines does not contribute much when comparing market offers, so we are going to analyze them based on their total minimum price that you will have to pay for the entire family combination in each operator.
We will also highlight other notable differences, such as fiber coverage, 5G availability, restrictions on adding additional lines, landline availability, permanence or the possibility of sharing data between family lines.
Paying less than 40 euros per family is possible, and not very profitable
Starting with the combined fiber and two mobile lines, we will see that it is possible to pay between 30 and 40 euros, but the alternatives have been drastically reduced in recent months. If the offers that remain in force fit your mobile data needs, there are some interesting alternatives, but if you doubt that you will have enough gigabytes, it will be more profitable to pay a little more.
Users interested in a combined offer of fiber and two mobile lines with cheaper unlimited minutesyou will find the following rates as a reference in minimum prices:
- 100 Mbps fiber + mobile with 10GB + mobile with 10 GB for 29.99 euros in Suop. Add additional lines from 10 GB for 5 euros.
- Fiber at 300 Mbps + mobile with 10GB + mobile with 10 GB for 35 euros in Digi. Add additional lines from 10 GB for 5 euros.
- Fiber at 300 Mbps + mobile with 15GB + mobile with 10 GB for 36.80 euros on Finetwork. Add additional lines from 15 GB for 7.90 euros.
- Fiber at 600 Mbps + mobile with 50GB + mobile with 6 GB for 40.90 euros in Lowi. Add additional lines from 6 GB for 3.95 euros.
The main cheap family offers are as detailed in the comparative graph:

Suop, the surprise operator that sweeps prices
Digi is the main leader in low prices, and many of its rivals imitate its rates without reaching the same level, as is the case of recognized operators such as O2, Lowi, Simyo, Pepephone, Jazztel or MásMóvil. But when we take the step family combinations, it is Suop that shines the most for its low prices, especially among those combined that offer more than 20 GB on each line. The minimum reference prices are the following:
- Fiber at 300 Mbps + mobile with 25GB + mobile with 25 GB for 34.99 euros in Suop. Add additional lines from 25 GB for 10 euros.
- Fiber at 500 Mbps + mobile with 50GB + mobile with 50 GB for 39.99 euros in Suop. Add additional lines from 50 GB for 14 euros.
- Fiber at 600 Mbps + mobile with 50GB + mobile with 50 GB for 46.90 euros in Lowi. Add additional lines from 50 GB for 9.95 euros.
- Fiber at 1,000 Mbps + mobile with 100 GB + mobile with 100 GB for 50 euros in Digi. Add additional lines from 100 GB for 10 euros.

With respect to the rest of advantages and differences Among the main operators, the following stand out:
Advantages |
Disadvantages |
|
---|---|---|
Lowi |
5G-VoLTE Share gigs Free gigs in summer and Christmas Free Gigs for loyalty Without CGNAT Stay 3 months |
Without multiSIM Without mobiles in installments No landline No television Without eSIM |
O2 |
5G-VoLTE eSIM Without CGNAT Permanence 0 months MultiSIM 5 euros/month Mobile rental Landline phone included |
Does not share gigabytes with other clients No free gigs in summer and Christmas No loyalty benefits No television |
Pepephone |
5G-VoLTE Loyalty discounts eSIM CGNAT deactivatable Permanence 0 months MultiSIM 3 euros/month Optional landline telephone |
Does not share gigabytes with other clients No free gigs in summer and Christmas Without mobiles in installments No television |
Digi |
Without CGNAT for an additional 1 euro Stay 3 months Optional landline telephone |
Without 5G – VoLTE Does not share gigabytes with other clients No free gigs in summer and Christmas No loyalty benefits Without mobiles in installments No television Without multiSIM Without eSIM |
Simyo |
Free gigs in summer and Christmas Share gigs Stay 3 months Mobile phones in installments |
Without 5G – VoLTE No loyalty benefits With mandatory CGNAT Without multiSIM No landline No television Without eSIM |
Finetwork |
Free gigs in summer and Christmas Share gigs |
Without 5G – VoLTE No loyalty benefits Without multiSIM Without eSIM With mandatory CGNAT 12 month stay Without mobiles in installments No landline No television |
Jazztel |
5G-VoLTE Share gigs Free gigs in summer and Christmas eSIM Without CGNAT MultiSIM for 3 euros Mobile phones in installments Landline phone included Optional television |
No loyalty benefits 12 month stay |
MoreMobile |
5G-VoLTE eSIM CGNAT deactivatable Mobile phones in installments Landline phone included Optional television Stay 3 months |
Does not share gigabytes with other clients No free gigs in summer and Christmas Without multiSIM No loyalty benefits |
Xenet |
Free gigs in summer and Christmas CGNAT deactivatable MultiSIM for 3 euros Landline phone included |
Without 5G – VoLTE Does not share gigabytes with other clients No loyalty benefits Without mobiles in installments No television Without eSIM 12 month stay |
In Xataka Mobile | Do you need 1 Gbps fiber or 100 Mbps is enough?