You're trying to get meetings with potential clients. You've got a list of prospects. Now you're stuck deciding whether to send cold emails or text messages.
Both channels are sitting in your prospect's pocket. Both feel urgent. Both seem like they should work. But they don't work the same way - and picking the wrong one will waste your time and money.
Here's what actually matters when you're choosing between the two.
The Real Difference: Inbox vs Pocket
Cold email gets delivered to an inbox they check maybe a few times a day. SMS gets delivered to their phone and sits in a text thread they carry with them.
That difference matters more than you think.
Email is a professional channel. They expect business communication there. They have filters, folders, and a mental expectation that some messages will be promotional or cold. SMS is personal. A text message from an unknown number breaks into their actual attention in a way email doesn't.
That should tell you something about which one gets higher open rates - SMS does, usually 98%+ - but which one actually gets replies and meetings. Email, when done right, converts to actual business conversations more consistently in B2B.
Cold Email: Better for Complex Sales and Relationships
If you're selling something that takes explanation, cold email is your channel.
Here's why: in B2B, your prospect needs context. They need to understand what you do, why you're reaching out to them specifically, and why now matters. Email gives you 200-300 words to build that story. SMS gives you 160 characters, and frankly, it feels weird to send 5 consecutive texts about your service.
Email also gives you a proper sequence. You send an initial cold email. They don't reply. You send a follow-up 3 days later. Then 5 days after that. This is normal in email. In SMS, sending multiple texts to a stranger reads as spam.
The benchmark for cold email response rates in B2B service businesses is 2-5%, depending on your list quality and copy. For emails that actually convert to meetings, you're looking at 0.5-2% of sends turning into qualified meetings. That sounds low until you run the math: send 500 cold emails, get 2-3 actual meetings. That's viable at scale.
Here's what good cold email copy actually looks like for a service business:
Hi [First Name],Quick question - when you're bringing new SEO clients in at [Company], are you handling the technical audits in-house or partnering with someone?Asking because we've been helping agencies like yours cut audit time from 2 weeks down to 3 days using our templated framework. Usually saves them around 15-20 hours per client.Worth a brief call if you're taking on new business?[Your name]
This works because it: shows you know their business (they bring in SEO clients), asks a real question (not a pitch), provides a specific benefit (cut time from 2 weeks to 3 days), and makes the ask tiny (just a brief call). The person reading this doesn't feel attacked. They feel like someone who understands their world reached out.
SMS: Better for Direct Asks and Warm Prospects
SMS works when you need an immediate action from someone who already knows you exist.
If you've had a conversation with someone - they filled out a form on your website, they responded to a previous email, they met you at an event - SMS is actually powerful for getting them to take the next step. The context is already there. They remember you. The text is just the nudge.
SMS also works for specific, time-sensitive offers. A 20% discount ending Friday. A limited number of spots in your program. A meeting slot you're holding for them.
But here's the critical part: SMS doesn't work cold for B2B in most cases. Sending an unsolicited text to a business owner or decision-maker feels intrusive. Worse, it doesn't give you space to explain who you are or why you matter. You have 160 characters. That's barely enough to say your name and what you do, let alone make a compelling case for why they should care.
The metrics back this up. Cold SMS campaigns from unknown numbers get 5-15% response rates on paper - people do respond to unknown texts - but most of those responses are