RhinoGuard flagship
Stealth Falcon Phone Case For Samsung Galaxy S21/S21 Plus/S21 Ultra 5G
Your configuration
Stealth Falcon Phone Case For Samsung Galaxy S21/S21 Plus/S21 Ultra 5G- Samsung Model
- For Galaxy S21 Ultra
- Color
- Black
- Selected configuration
- Review recommended
- Current price
- $49.95
Preselected for display. Check the device, model, and size before ordering, or choose another option.
Curated add-ons
Complete your setup
Useful extras selected for this product—not substitutes.
Your setup: 0 of 2 complete
Optional accessories are never preselected.
Matched to your selected model
Galaxy privacy screen protector
Adds model-matched screen protection and side-angle privacy.
$39.95
Universal phone mount
Universal car phone mount
Keeps your phone visible for hands-free navigation.
From $29.95
Nothing is preselected. Confirm every model, size, or style before adding.
Match the model and generation shown in this product's options to your phone before ordering. Similar model names can use different case dimensions.
Avontic Samsung Collection · Samsung phone case
Stealth Falcon Phone Case For Samsung Galaxy S21/S21 Plus/S21 Ultra 5G
Protection built for Galaxy S21 Ultra
Built for customers who want meaningful protection without losing the everyday usability of their Galaxy phone. This product combines its stated protective construction with model-specific fit, practical access, and a finish designed to look considered on For Galaxy S21 Ultra, For Galaxy S21 Plus, and For Galaxy S21.
✓ Compatibility-first✓ Product-specific details✓ Built for confident selection
Exact phone fit
Feature-led protection
Clear model guidance
Why this product earns its place
Designed around the way you actually use it.
The most important product benefits are organized below so you can compare protection, comfort, function, materials, and fit with the clearest purchase-ready details first.
Coverage is shaped around the product’s stated protective features while preserving access to the controls and functions you use most.
Built for For Galaxy S21 Ultra, For Galaxy S21 Plus, and For Galaxy S21; Samsung base, Plus, Ultra, FE, Fold, and Flip versions are not automatically interchangeable.
This product highlights the product-specific materials shown in this listing, selected to balance protection, feel, and everyday handling.
The design is presented as a deliberate upgrade to the phone—not a generic shell—so fit and variant selection stay central.
Compatibility and configuration
Choose the exact Samsung setup.
Compatibility is treated as a purchase requirement, not an afterthought. Match the model, generation, millimeter size, and configuration shown in your selector.
Supported selections shown on this listing
For Galaxy S21 UltraFor Galaxy S21 PlusFor Galaxy S21
Fit check
Galaxy S, Note, Z Fold, and Z Flip products are model-specific. Base, Plus, Ultra, FE, and Edge versions can use different dimensions. Fold and Flip generations also use different hinge and camera geometry.
Product details
The purchase-critical facts, clearly organized.
Product categorySamsung phone case
Materials referencedSee the selected configuration and product specifications
Available finishesBlack, Blue, Red, Rose, Purple
Configuration choicesSelect the model, size, color, and style options shown above
What is includedOne selected phone case configuration. Phone, screen protector, magnetic charger, and other accessories are included only when expressly stated.
Before adding to cartConfirm the selected model, size, color, quantity, and included components shown above.
Expert fit note
Galaxy S, Note, Z Fold, and Z Flip products are model-specific. Base, Plus, Ultra, FE, and Edge versions can use different dimensions. Fold and Flip generations also use different hinge and camera geometry.
Additional product-specific highlights
More reasons it fits your routine.
- Avontic Description: Avontic custom designs and engineers all of our products to provide our customers with the best Samsung phone cases on the market today, providing the ultimate protection.
- Our customcase protects your phone and keeps its sides scratch-free without obstructing any of the buttons.
Complete your Avontic setup
Protection, fit, and function—selected with confidence.
Choose the exact compatible configuration above. Then review the curated add-ons on this product page for model-matched cases, bands, protectors, chargers, or holders that complement this setup.
Avontic provides fast free shipping on every order. Estimated U.S. delivery is 3–5 business days for orders placed by 6:00 PM Eastern Time; orders placed after the cutoff may require one additional business day, Canada delivery is 6–10 business days, while other international delivery is generally 6–12 business days. Tracking is emailed after dispatch. Carrier, customs, weather, and seasonal delays can affect delivery estimates.
Avontic offers 60-Day Returns. Review the current Return Policy for eligibility, available resolutions, and any applicable conditions before sending an item back.
Not sure which option fits? Contact Avontic before ordering and include the exact device model, generation, and size shown in your settings or on the device itself.
Stealth Falcon Phone Case For Samsung Galaxy S21/S21 Plus/S21 Ultra 5G
Choose options