Company: SONM
Filing Date: 2025-07-09
Form Type: S-3
Source: 0001641172-25-018394
Chunk: 4

Company: SONIM TECHNOLOGIES INC
Filing Date: 2025-07-09
Form: S-3
Chunk 4
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 used by the Selling Stockholders, see the section titled “Plan of Distribution.”

Investing in our common stock involves a high degree of risk. You should carefully consider the risk factorsbeginning on page 7of this prospectus and under similar headings in the other documents that are incorporated by reference into this prospectus before purchasing any of the Resale Shares offered by this prospectus.

Our common stock is traded on
the Nasdaq Capital Market (“Nasdaq”), under the symbol “SONM.” The last reported sale price of our common
stock on Nasdaq on July 8, 2025, was $0.6859 per share.

We may amend or supplement this
prospectus from time to time by filing amendments or supplements as required. You should read the entire prospectus and any amendments
or supplements carefully before you make your investment decision.

We are a “smaller reporting
company” as defined under Rule 405 of the Securities Act, and, as such, are subject to certain reduced public company reporting
requirements. See “Prospectus Summary—Implications of Being a Smaller Reporting Company”
on page 4 of this prospectus.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

<div align='center'>The date of this prospectus is , 2025.</div>

<div align='center'>TABLE OF CONTENTS</div>

|                                                      | Page |
| About this Prospectus                                |    1 |
| Cautionary Note Regarding Forward-Looking Statements |    2 |
| Prospectus Summary                                   |    4 |
| The Offering                                         |    6 |
| Risk Factors                                         |    7 |
| Use of Proceeds                                      |    8 |
| Selling                                              
 Stockholders                                         |    9 |
| Plan of Distribution                                 |   11 |
| Legal Matters                                        |   13 |
| Experts                                              |   13 |
| Where You Can Find More Information                  |   13 |
| Incorporation by Reference                           |   14 |

<div align='center'>ABOUT THIS PROSPECTUS</div>

This prospectus is part of a registration statement on Form S-3 under the Securities Act, that we filed with the Securities and Exchange Commission (the “ SEC”), using the “shelf” registration process. Under this shelf registration process, the Selling Stockholders may offer and sell