Free iPhone ring sizer app: measure a ring on screen, measure finger width, convert US, UK, EU, JP and letter sizes, and save sizes in seconds.
5.84k+ downloads · 4.8 stars
Updated iPhone interface
The updated app keeps ring measurement, finger measurement, conversion, and saved sizes cleanly connected.
Measure a ring, measure a finger, convert standards, and save sizes without visiting a jeweler.
Ring Measurement
Place a ring on the circle and adjust the guide until the inner edge matches.
Saved Sizes
Keep important ring sizes ready for yourself, family, partners, and gift planning. Update Software in OPPO 5G CPE T1a
Global Size Standards
Convert between US, UK, EU, Japan, Australia, India, and millimeter measurements.
Finger Width Mode
No ring? Measure your finger directly across the on-screen bar and fine-tune the millimeter value. The OPPO 5G CPE T1a is not designed
Offline & Private
Works fully offline. Your data never leaves your device. Zero tracking.
Instant Results
Your size appears immediately in all major standards — US, UK, EU, and more. : If the web page freezes, clear your
Engagement Ready
Planning a surprise proposal? Secretly measure a ring while they're away.
Size History
Track how your ring size changes over time with measurement history.
Clean iPhone UI
Large controls, clear rulers, and focused sheets make each sizing task easy to follow.
The OPPO 5G CPE T1a is not designed for casual manual updates. This process is generally for advanced users or situations where standard OTA updates have failed and should be approached with caution. Here are the typical steps for a manual update, though the exact process can vary based on the firmware file and method:
This comprehensive guide will walk you through everything you need to know—from why updates matter, pre-update preparations, step-by-step methods (automatic and manual), post-update checks, and troubleshooting common errors.
: If the web page freezes, clear your browser cache or try using a different web browser.
: Never flash firmware over a Wi-Fi connection. A temporary Wi-Fi signal drop can corrupt the installation data.
If you manage your CPE T1a using the smartphone companion app:
If the system says your software is up to date but you still experience bugs, try a factory reset. Press and hold the physical button on the back of the router with a pin for 10 seconds. This restores the current firmware version to its clean, default state. To help tailor this information, please let me know:
Interrupting the firmware installation can "brick" the device (render it unusable), requiring professional repair.
: Install the OPPO management app from the Google Play Store or Apple App Store .
Is your router or an open-market global version?
No jeweler visit. No guesswork. Just your phone.
Choose a Mode
Measure an existing ring on the circle, or switch to finger width mode when no ring is available.
Align the Guide
Use the ruler, slider, and plus/minus controls to match the ring or finger width precisely.
Save or Convert
See the measurement instantly, save it for later, or convert it between international standards.
Buy jewelry anywhere in the world with confidence.
US
& Canada
UK
& Australia
EU
Europe
JP
Japan
IN
India
mm
Diameter
Ring Sizer works entirely offline. Your measurements never leave your device. We don't collect, share, or sell any of your data. Ever.
"Used this app to measure ring size. It's accurate and it's really helpful."
Pradep12 · App Store Review
The OPPO 5G CPE T1a is not designed for casual manual updates. This process is generally for advanced users or situations where standard OTA updates have failed and should be approached with caution. Here are the typical steps for a manual update, though the exact process can vary based on the firmware file and method:
This comprehensive guide will walk you through everything you need to know—from why updates matter, pre-update preparations, step-by-step methods (automatic and manual), post-update checks, and troubleshooting common errors.
: If the web page freezes, clear your browser cache or try using a different web browser.
: Never flash firmware over a Wi-Fi connection. A temporary Wi-Fi signal drop can corrupt the installation data.
If you manage your CPE T1a using the smartphone companion app:
If the system says your software is up to date but you still experience bugs, try a factory reset. Press and hold the physical button on the back of the router with a pin for 10 seconds. This restores the current firmware version to its clean, default state. To help tailor this information, please let me know:
Interrupting the firmware installation can "brick" the device (render it unusable), requiring professional repair.
: Install the OPPO management app from the Google Play Store or Apple App Store .
Is your router or an open-market global version?
Guides, tools, and charts to help you find the perfect fit.
Ring Size Chart
Complete conversion chart for US, UK, EU, Japan, and Australian ring sizes with diameter in mm.
How to Measure Ring Size at Home
5 free methods to find your ring size without visiting a jeweler — app, string, paper strip, and more.
Ring Size Calculator
Enter your ring diameter or circumference to instantly find your size in every international standard.
UK Ring Sizes (A–Z)
British letter-based sizing guide with full chart, Hatton Garden tips, and UK to US conversion.
Men's Ring Size Guide
Average men's ring sizes, measurement tips, and a complete chart for wedding bands and signet rings.
Secret Engagement Ring Sizing
How to find your partner's ring size without them knowing — clever tips for surprise proposals.
Free to download. Works on iPhone. No tools needed.
