Overview: Two Flagship Watches for Hybrid Training
Amazfit Balance Ultra and Amazfit Balance 3 are high-end hybrid training smartwatches designed to combine detailed performance tracking, long battery life and everyday productivity in a single device for serious athletes. Both models sit at the top of Amazfit’s Balance lineup, pairing AMOLED screens and dual-band GPS with advanced recovery insights and stress monitoring. They are also positioned as the “brain” of Amazfit’s new Hybrid Training System, tying together strength, endurance and lifestyle data inside the Zepp app. Where they differ is in construction, battery capacity and physical controls. The Balance Ultra is a titanium smartwatch focused on extreme durability and maximum battery life, while the Balance 3 balances stainless steel (with a titanium option coming) and extra buttons for more precise control. Understanding these differences is key to deciding which smartwatch best supports your training and daily use.
Design and Materials: Titanium vs Stainless Steel
The Amazfit Balance Ultra leans hard into durability with a 52mm case made from Grade 5 high-strength titanium and a sapphire crystal lens, backed by 10 ATM water resistance and a dedicated dive mode. This makes it the clear choice if you want a premium titanium smartwatch built for harsh conditions. The Balance 3, by contrast, currently ships with a stainless steel case and the same sapphire glass and 10 ATM resistance, with a titanium version announced for later. Both watches are large on the wrist, with the Balance 3 measuring 51.4mm across and the Balance Ultra slightly wider at 51.8mm. Thickness also increases on the Ultra due to its bigger battery. According to GSMArena, the Ultra includes two straps in the box, one synthetic leather and one silicone, which adds value for users switching between training and office wear.
Display, Sensors and Smart Features: A Shared Core
In an AMOLED smartwatch comparison, the Amazfit Balance Ultra and Balance 3 are nearly identical. Both feature a 1.5‑inch round AMOLED display with 480 x 480 resolution, sapphire protection and peak brightness up to 3,000 nits for clear visibility outdoors. Each supports always-on display, though that affects battery life. Internally, they share 64GB of storage for offline maps, music and podcasts, and include a microphone and speaker for Bluetooth calls. Health and training data comes from the same BioTracker 6.0 PPG sensor, which monitors heart rate, blood oxygen, stress and skin temperature, and feeds into sleep analysis and readiness scores. Dual-band GPS is available on both, with improved efficiency that extends tracking time in high-accuracy modes. If you care mainly about screen quality, GPS precision and smart features, there is no functional winner here; the experience is effectively the same.
Battery Life and Buttons: Endurance vs Control
Battery life is where the Amazfit Balance Ultra pulls ahead. Its 780mAh cell, supported by the HybridCharge power system, delivers up to 30 days of typical use and up to 50 hours of continuous GPS in Accuracy Mode. The Balance 3’s 658mAh battery targets up to 21 days of typical use and around 41 hours of high-accuracy GPS. GSMArena notes that “the Amazfit Balance Ultra can last up to 30 days of typical use and up to 50 hours in Accuracy GPS Mode.” Controls differ too: Balance 3 offers four buttons (including a rotating crown), while the Ultra adds a fifth button on the left for more granular control in workouts and navigation. If you want a 30 day battery smartwatch that sacrifices a little compactness for endurance and extra hardware keys, the Ultra is the stronger option.
Hybrid Training, HYROX Tools and Which Watch to Buy
Both watches are deeply integrated into Amazfit’s Hybrid Training System, combining BioCharge, LifeLoad and Training Load metrics to weigh recovery, stress and workout strain. They also include official HYROX support, with structured race preparation plans, simulations, virtual pacing and race-specific workouts aimed at functional fitness athletes. The Ultra adds a specialized dive mode, making it more appealing if underwater sports are part of your routine. Price may influence your choice: the Amazfit Balance 3 in stainless steel is listed at £370, with a titanium version coming at £450, while the Balance Ultra launches at £600 and includes two straps. The Amazfit Balance Ultra is for athletes who prioritise titanium construction, a 30-day battery and extra buttons; the Amazfit Balance 3 suits those who want similar training features and display quality at a lower starting price.
