Cold Email vs LinkedIn vs Cold Calling: What One Dataset Shows

Cold email vs LinkedIn vs cold calling is usually argued with opinions. Each camp has a favorite channel and a story that proves it. Data is harder to come by, because few companies run all three channels at scale and publish what happened.

Belkins did, and its numbers are useful because they come from one source measuring three channels. They are also one company's managed outreach, so we treat them as one dataset, not as a law of nature. This guide goes through what it shows, why email still books half the meetings, and how to combine the channels without wasting touches.

What each channel is good at

Before the numbers, the basic character of each channel.

• Cold email is cheap per touch and easy to scale. It is the best way to reach hundreds of accounts, and the hardest to keep out of the spam folder.
• LinkedIn shows who you are before anyone replies. It is slower and capped by platform limits, but a profile and a shared context make replies more likely.
• Cold calling is the only channel where you can get a live answer. It takes the most time per contact and the most nerve.

Cold email vs LinkedIn vs cold calling: what one 2025 dataset shows

All figures below are from Belkins' sales follow-up statistics, which draws on its own managed outreach for clients in 2025. We repeat them as reported. The page does not define "engagement rate" or "connect rate" in detail, so the channels are not perfectly like-for-like.

Belkins also breaks LinkedIn replies down by campaign type, using Expandi data: 12.22% for messenger campaigns, 7.95% for connector campaigns and 5.37% for builder campaigns. The page does not explain those labels in the text we read, so we report them as Belkins' categories without interpreting them.

One gap to note. LinkedIn's share of appointments is not given as a number in the text. If email and calls are 50% and 33.6%, the remainder is about 16%, but that is our subtraction and it assumes those were the only three channels.

Volume vs connection rate: why email still books half the meetings

Look at the table again. Email engaged 0.45% of the time, while calls connected 18.6% of the time. Email is the worst channel per contact by far, and it produced the most appointments.

The reason is volume. Email costs almost nothing per additional contact, so a campaign can reach thousands of prospects. A caller can only dial so many numbers in a day. When the per-touch rate is small but the number of touches is huge, the total can beat a channel with a better rate and a tighter ceiling.

A simple illustration, with invented numbers, to show the logic rather than predict results: 10,000 emails at 0.5% is 50 responses. 200 connected calls at 18% is 36 conversations. The ranking per touch and the ranking in total are opposite. Your own numbers will differ, but the shape is the point.

This is why "email is dead" arguments do not survive contact with a spreadsheet. It is also why email alone leaves meetings on the table when the list is small and each deal is large.

Sequencing channels without repeating yourself

A multi-channel sequence fails when it sends the same pitch three ways. A prospect who sees an email, a LinkedIn note and a voicemail with identical wording learns only that you are persistent. Each touch should add a reason to respond.

• Use channels to confirm identity. A LinkedIn profile view or connection note shortly after an email tells the prospect you are a real person.
• Reference the earlier touch. A call can open with "I sent a note on Tuesday about X," which turns a cold call into a follow-up.
• Vary the angle. If email led with a problem, let the next touch share a short proof or a question.
• Respect timing. Our guide to follow-up timing covers spacing, and signals over guessing covers when a prospect's behavior should change the plan.

Which accounts get which channel

This section is our judgment, not a finding from the dataset. A simple way to split the work:

• Large lists, lower deal value: email first, with LinkedIn as a light supporting touch. Calls only for replies and hot signals.
• Mid-size lists, mid-size deals: email plus LinkedIn on every account, with calls on accounts that show interest.
• Small lists, high deal value: all three channels from the start, with hand-written messages. Here the cost per touch matters less than the cost of missing the account.

Whatever the split, personalize in proportion to the value of the account. Our guide to personalization at scale covers where the effort pays off.

Compliance differences by channel

Channels are regulated differently, and consent for one does not cover another. The M3AAWG position on cold email says that consent given to be contacted by phone does not provide consent for cold email.

Rules also vary by country. South Africa's POPIA section 69, for example, covers direct marketing by automatic calling machines, fax, SMS and email. Calls made by a person and LinkedIn messages sit under different rules and platform terms, and they vary by country. Check each channel separately for each market you contact. Our guide on whether cold email is legal covers the email rules. This is general information, not legal advice.

When each channel is the wrong choice

Every channel has a case where it should stay off the list.

• Email is wrong when your list is a few dozen strategic accounts and you cannot risk a generic message. A hand-written note or a call fits better.
• LinkedIn is wrong when your buyers barely use it, or when you need to reach thousands of contacts quickly. Platform limits will slow you down.
• Calling is wrong when you lack a clear reason to call, a decent phone number for the contact and someone who can handle objections live. A bad call costs more goodwill than a bad email.

The mistake is not choosing the wrong channel. It is choosing a channel because it is what your team already likes.

A simple test plan

You do not need a large budget to find your own mix. Here is one way to run the test, as an illustration rather than a prescription.

1. Take one list of accounts that fit your customer profile and split it into two matched halves.
2. Send the first half an email sequence only. Send the second half the same emails plus a LinkedIn touch and a call on the accounts that engage.
3. Run both for the same period and count booked appointments, not replies.
4. Divide the appointments by the hours and money spent on each half.

If the second half books more per hour, the extra channels are worth it for that audience. If not, keep the simpler setup and spend the time on better lists.

Limits of the data

Treat the Belkins numbers with care. They come from one company's managed outreach, across projects with different offers and lists. Belkins does not define every term it uses, and the channels have different sample sizes. The data tells you roughly how the three channels relate in one firm's hands. It cannot tell you what you will get.

The best use is to test. Run the same list through email and one other channel for a month, track appointments rather than replies, and let your own numbers decide the mix.

Putting it together

Pick the channel mix from your deal size and list size, not from which channel is fashionable. Email gives you reach, LinkedIn gives you credibility, and calls give you a live answer. Plan each touch to add something new, and measure appointments, not just replies.

Realtrix runs this as its multi-touch outreach service, a coordinated 13-day, 7-touch cadence across email, phone and LinkedIn, with infrastructure at cost and a fee per qualified reply.

Frequently asked questions

Is cold email better than cold calling?

Neither wins outright. In Belkins' 2025 data, calls connected with 18.6% of prospects reached while email engaged 0.45%, yet email produced 50% of appointments against 33.6% for calls. Email wins on volume and cost per touch, calls win on connection. Many teams use both on the same account.

Is LinkedIn outreach better than cold email?

Per message, LinkedIn replied far more often in Belkins' data, which reports "7%+" for LinkedIn against 0.59% for a first email. But LinkedIn reaches fewer people because of connection limits and manual steps. It is better for a small, high-value list, and email is better for covering a large one.

What is multichannel outreach?

Multichannel outreach means contacting the same prospect through more than one channel, such as email, LinkedIn and phone, in a planned order. The point is to give a prospect several chances to notice you without repeating the same message. It works best when each touch adds something new instead of copying the last one.

What is a multi-touch cadence?

A multi-touch cadence is a fixed schedule of contacts, with set gaps and a set channel for each touch. For example, an email on day one, a LinkedIn request on day three and a call on day six. The schedule keeps follow-up consistent and tells you exactly when a lead has been worked through.

How long should a multichannel sequence run?

No source we opened sets a standard. Realtrix runs a 13-day, 7-touch cadence across email, phone and LinkedIn, and our follow-up guide suggests roughly two weeks for email alone. Beyond that, returns tend to fall and complaint risk rises, so stop, log the lead and revisit it later.

Related guides

• Follow-Up Timing: The Golden Cadence
• Signals > Guessing: When to Follow Up
• Personalization at Scale