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Apple discontinued the original AirTag the same day AirTag 2 launched in January 2026 — but both versions still look identical from the front, and Apple has never used a clean “AirTag 2” label anywhere on the box. That leaves a real problem for anyone buying secondhand, shopping clearance shelves, or simply digging an old AirTag out of a drawer: how do you actually know which one you have?
There is one reliable way to tell them apart, and it takes about five seconds. Here is exactly how to tell AirTag 1 from AirTag 2, plus why it actually matters before you buy.
⚡ Quick Answer
Flip the AirTag over. If every word on the back is in ALL CAPITAL LETTERS, it is AirTag 2. If the text uses normal sentence case (not all caps), it is the original AirTag 1.
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Quick Answer — The Fastest Way to Tell Them Apart
The fastest and most reliable way to identify your AirTag generation is to look at the engraving on the back of the device. AirTag 2 has every line of text printed in continuous capital letters. AirTag 1 mixes capital and lowercase letters, the same style Apple has always used on its hardware. This single detail is more reliable than the price, the box, or what any retailer tells you.
The Exact Back Text on Each Generation
Apple actually prints the rear engraving on the front of the retail box too, so you do not even need to open the package to check. Here is exactly what each version says.
AirTag 1 (Original, 2021)
The back reads: AirTag / Designed by Apple in California / Assembled in China / Bluetooth LE / Ultra Wideband. Notice the normal sentence-style capitalization — only the first letter of each word is capitalized, the way most product engravings look.
AirTag 2 (2026)
The back reads: AirTag / FIND MY / NFC / BLUETOOTH LE / ULTRA WIDEBAND / IP67 / APPLE INC. Every single word is in full capital letters, with no exceptions. As 9to5Mac confirmed in its hands-on comparison, this all-caps formatting is the one consistent giveaway across every AirTag 2 unit.
How to Check Inside the Find My App
If your AirTag is already attached to keys, a bag, or a collar and you do not want to remove it to check the back, the Find My app offers a second way to confirm which generation you own.
- Open the Find My app on your iPhone
- Tap the Items tab at the bottom
- Select the AirTag you want to check
- Scroll down and tap the serial number or model details row
- The model identifier will distinguish first-generation from second-generation hardware
This method is slightly slower than checking the back text, but it works even if the AirTag is sealed inside a case or accessory you do not want to remove.
Full Spec Comparison Table
| Spec | AirTag 1 (2021) | AirTag 2 (2026) |
|---|---|---|
| Back text style | Mixed case | ALL CAPS |
| Price | $29 (discontinued) | $29 |
| Chip | U1 Ultra Wideband | U2 Ultra Wideband |
| Precision Finding range | Standard | 1.5x longer |
| Speaker volume | Standard | 50% louder |
| Battery display | Low battery warning only | Exact percentage shown |
| Apple Watch support | No | Yes (Series 9+/Ultra 2+) |
| Weight | 11g | 11.8g |
| Battery type | CR2032 | CR2032 |
| Water resistance | IP67 | IP67 |
| Still sold by Apple | No | Yes |
For a deeper breakdown of every functional difference, see our AirTag 2 vs AirTag 1 differences guide.
Compatibility — Why This Matters Before You Buy
There is a compatibility detail that makes identifying your AirTag generation more than just trivia. According to Six Colors’ reporting on AirTag 2 pairing requirements, your iPhone or iPad needs to be running iOS or iPadOS version 26.2.1 or later to set up and locate an AirTag 2. Older software versions cannot pair with the new hardware at all, regardless of which iPhone model you own.
This means if you receive an AirTag 2 as a gift or buy one secondhand, checking for software updates should be your very first step — not just identifying which generation it is.
Why It Matters Which One You Have
Knowing your AirTag generation affects three practical things. First, resale value — AirTag 2 commands a higher price secondhand since it is the current model. Second, troubleshooting — support documentation and firmware updates differ between generations. Third, expectations — if you paid full $29 price expecting AirTag 2 features like Apple Watch support or the longer Precision Finding range, but received an AirTag 1, you should know immediately rather than discovering it weeks later.
The good news is that both generations use identical external dimensions, so every accessory in our best AirTag accessories guide fits either version without any compatibility issues.
Frequently Asked Questions
How do I know if I have AirTag 1 or AirTag 2?
Check the engraved text on the back. If every word is in capital letters, it is AirTag 2. If the text uses normal mixed-case lettering, it is the original AirTag 1.
Is AirTag 1 still available to buy?
Apple officially discontinued AirTag 1 the same day AirTag 2 launched in January 2026. However, some third-party retailers and resellers may still have leftover stock, often at a discount below the original $29 price.
Do AirTag 1 and AirTag 2 use different batteries?
No. Both generations use the same user-replaceable CR2032 coin cell battery, rated for over one year of typical use.
Can I tell the difference without opening the AirTag’s packaging?
Yes. Apple prints the same back engraving on the front of the retail box, so you can check the capitalization style directly on unopened packaging before purchasing.
Why doesn’t Apple just call it “AirTag 2” officially?
Apple has not adopted a numbered naming convention for AirTag. Official references use phrases like “the new AirTag” or “AirTag (2nd generation),” which is why the unofficial term “AirTag 2” has become the common shorthand among reviewers and buyers.
Will AirTag 1 work with my iPhone if I don’t update my software?
Yes, AirTag 1 continues to work on the iOS and iPadOS versions it always supported. The 26.2.1 software requirement applies specifically to pairing and locating AirTag 2, not the original model.
Does the price difference tell me which generation I’m buying?
It can be a clue but is not fully reliable. If a listing is priced significantly below the standard $29 retail price, it is more likely to be old AirTag 1 stock, but checking the back text engraving remains the only certain method.
Final Verdict
The all-caps engraving on the back is the single most reliable way to tell AirTag 1 from AirTag 2, and it works whether you are standing in a store, checking a listing photo, or holding the device in your hand. If you are buying new, simply confirm you are getting AirTag 2’s all-caps engraving for the current $29 price. If you already own an AirTag and just want to confirm which version it is, flip it over — the answer is right there in five seconds.
Md Masud Rana — Tech Reviewer & Gadget Specialist
Masud has hands-on experience testing consumer electronics, tracking devices, and everyday gadgets. He founded Honest Picks to cut through marketing noise and deliver real, unbiased product reviews that help readers make smarter purchase decisions.
Last Reviewed: June 2026