New Balance Women's Fresh Foam 520 V9 Running vs Under Armour Women's Charged Assert 9, Black/White, 8.5 US
Updated August 2026 — New Balance Women's Fresh Foam 520 V9 Running wins on weight and cushioning, Under Armour Women's Charged Assert 9, Black/White, 8.5 US wins on price and support.
The New Balance Women's Fresh Foam 520 V9 offers superior lightweight design and cushioning, while the Under Armour Women's Charged Assert 9 provides better midfoot support and a plush feel.
Why New Balance Women's Fresh Foam 520 V9 Running is better
Lightweight
Fresh Foam 520 V9 is lighter at just over 200 grams.
Cushioning
Fresh Foam 520 V9 features responsive fresh foam cushioning.
Traction
Fresh Foam 520 V9 has a durable rubber outsole for various surfaces.
Why Under Armour Women's Charged Assert 9, Black/White, 8.5 US is better
Price
Charged Assert 9 is priced at $57.95, cheaper than $59.99.
Support
Charged Assert 9 offers reinforced overlays for midfoot support.
Popularity
Charged Assert 9 has a higher sales rank at 2002.
Overall score
Specifications
| Spec | New Balance Women's Fresh Foam 520 V9 Running | Under Armour Women's Charged Assert 9, Black/White, 8.5 US |
|---|---|---|
| Brand | New Balance | Under Armour |
| Current Price | $59.99 | $57.95 |
| Sales Rank | 3173 | 2002 |
| Cushion Type | Fresh Foam | Charged Cushioning |
| Upper Material | Mesh | Engineered Mesh |
Dimension comparison
Price Comparison
The New Balance Women's Fresh Foam 520 V9 Running Shoe is priced at $59.99, while the Under Armour Women's Charged Assert 9 is slightly cheaper at $57.95. This makes the Charged Assert 9 about 2% less expensive than the Fresh Foam 520 V9. Although the difference in price is minimal, it could be a deciding factor for budget-conscious shoppers. Both shoes fall within a similar price range, making them accessible options for runners looking for quality footwear without a significant financial commitment.
Comfort and Cushioning
Comfort is paramount in running shoes, and both the Fresh Foam 520 V9 and the Charged Assert 9 deliver impressive cushioning. The Fresh Foam 520 V9 features fresh foam cushioning that promises responsive comfort mile after mile, making it a solid choice for long-distance runners. On the other hand, the Charged Assert 9 utilizes a Charged midsole that provides balanced impact protection and a soft, cushioned ride, ideal for newer runners or those who prefer a more plush feel. While the Fresh Foam 520 V9 is particularly lightweight at just over 200 grams, the Charged Assert 9 offers a plush step-in feel with foam padding around the ankle, enhancing overall comfort.
Breathability
Both running shoes excel in breathability, but they employ different technologies to achieve this. The Fresh Foam 520 V9 is designed with a breathable mesh upper that keeps feet cool and dry during cardio workouts. This feature is essential for maintaining comfort during warmer runs. Conversely, the Charged Assert 9 also boasts a lightweight mesh upper, specifically engineered to boost airflow for cooler feet. This focus on breathability in both models makes them suitable for warm-weather activities, ensuring that your feet stay comfortable even during intense workouts.
Weight and Design
The New Balance Women's Fresh Foam 520 V9 stands out with its lightweight design, weighing just over 200 grams. This characteristic allows for quicker movements, making it an excellent choice for runners who prioritize speed. The sleek and modern aesthetic of the Fresh Foam 520 V9 complements its performance-focused design. On the other hand, the Under Armour Women's Charged Assert 9, while not as explicitly noted for its weight, offers a flexible outsole that enhances natural movement. Both shoes are designed with an emphasis on performance, but the clear advantage in lightweight construction goes to the Fresh Foam 520 V9.
Traction and Durability
When it comes to traction and durability, both the Fresh Foam 520 V9 and the Charged Assert 9 are equipped with reliable outsoles. The Fresh Foam 520 V9 features a durable rubber outsole that provides dependable traction on various running surfaces. This feature is crucial for runners who navigate different terrains. Meanwhile, the Charged Assert 9 also has a rubber outsole designed with a flexible tread pattern, increasing traction and adaptability on pavement or treadmills. While both shoes offer solid grip, the Fresh Foam 520 V9's emphasis on various running surfaces may give it a slight edge for outdoor runners.
Fit and Support
Fit and support are critical factors for any runner, and both shoes offer unique features to enhance these aspects. The Fresh Foam 520 V9 incorporates a simple lace-up closure that adjusts for a secure fit, which is essential for maintaining comfort during longer runs. In contrast, the Charged Assert 9 provides midfoot support with reinforced overlays that help keep the foot centered, which is beneficial for stability during light training or longer walks. While both shoes cater to fit, the Charged Assert 9's additional support features may appeal more to those who require extra stability.
Sales Rank and Popularity
In terms of popularity, the Under Armour Women's Charged Assert 9 ranks higher on the bestseller list, holding the 2002 position compared to the Fresh Foam 520 V9's rank of 3173. This indicates that the Charged Assert 9 is a more sought-after option among consumers. Higher sales ranks often reflect customer satisfaction and trust in the product. However, the Fresh Foam 520 V9 still offers a compelling choice, especially for those prioritizing its specific comfort and lightweight design features.
Which should you buy?
Choosing between the New Balance Women's Fresh Foam 520 V9 and the Under Armour Women's Charged Assert 9 ultimately depends on your specific running needs and preferences. If you prioritize lightweight design and responsive cushioning for speed, the Fresh Foam 520 V9 is the better option. However, if you are looking for a slightly more affordable shoe with enhanced midfoot support and a plush feel, the Charged Assert 9 may be the right choice for you. Both shoes excel in breathability and traction, making either a solid addition to your running gear.

