Amazfit Balance 2 vs Fitbit Charge 6: Is GPS Worth $140 More?

The Amazfit Balance 2 and the Fitbit Charge 6 both wear “fitness device” on the box, but they’re playing different games. One is a full smartwatch with multi-band GPS and three weeks of battery. The other is a slim tracker built around the Fitbit app and Google’s smart features. The right pick depends on whether you want a watch or a band.

Key Differences

• GPS: Balance 2 has multi-band (dual-frequency) GPS for accurate tracking in cities and trails. Charge 6 has single-band GPS + GLONASS — fine for open routes, but less reliable around buildings.
• Battery life: Balance 2 lasts 21 days in smartwatch mode and 33 hours with GPS on. Charge 6 lasts 7 days normally and only 5 hours with GPS running.
• Form factor: Balance 2 is a 47mm watch at 43g. Charge 6 is a 36.73mm band at 30g — noticeably smaller and lighter on the wrist.
• Health sensors: Charge 6 includes ECG and EDA (stress) sensors. Balance 2 skips both but adds a wrist temperature sensor.
• Audio: Balance 2 has a mic and speaker for calls and voice commands. Charge 6 has neither.
• Storage: Balance 2 has 32GB onboard for offline music. Charge 6 has none — you control music on your phone.
• Price: Balance 2 launched at $299.99. Charge 6 launched at $159.95 and now routinely sells lower.

Deep Dive Comparison

Design & Comfort

The Charge 6 is the comfort winner if you hate bulk on your wrist. At 30g and just under 37mm wide, it disappears under a sleeve and sleeps well. The aluminum, glass, and resin build feels solid but unmistakably “tracker.”

The Balance 2 is a real watch — 47mm, 43g, with an aluminum alloy frame and a fiber-reinforced polymer case. It’s not heavy for its size, but it’s a presence. The 1.5-inch 480 x 480 AMOLED is sharp and big enough to run apps comfortably. The Charge 6’s 1.04-inch 184 x 276 AMOLED is bright, but you’ll squint at notifications.

Battery Life

This is where the Balance 2 walks away. 504 hours (21 days) in smartwatch mode is genuinely a “charge it twice a month” experience. The Charge 6’s 168 hours (7 days) is good for a tracker but a different category entirely.

The GPS gap is even bigger. Balance 2 runs 33 hours with GPS active. Charge 6 dies in 5 hours. If you’re doing a marathon, an all-day hike, or a long ride, the Charge 6 is going to leave you hanging.

Health & Fitness Features

Both have continuous heart rate and SpO2 (blood oxygen). The Balance 2 uses Amazfit’s BioTracker 6.0 PPG with a barometer for elevation tracking and a temperature sensor for trends. The Charge 6 brings ECG (for atrial fibrillation checks) and EDA (electrodermal activity for stress readings) — sensors the Balance 2 doesn’t have.

For real workouts, GPS is the dividing line. The Balance 2’s multi-band GPS holds tight to your route in dense cities and tree cover. The Charge 6’s single-band GPS + GLONASS does the basics on an open road but drifts more in tough conditions, and the 5-hour cap rules out long sessions.

Smart Features

The Balance 2 has a mic and speaker, so you can take calls from your wrist, use voice assistants, and play stored music through Bluetooth headphones (32GB of onboard storage). It also has Wi-Fi 2.4GHz for syncing without a phone nearby.

The Charge 6 has none of that — no mic, no speaker, no onboard music storage. What it does have is tight Google integration: Google Maps turn-by-turn, Google Wallet (NFC), and YouTube Music controls. Both watches support NFC payments.

Price & Value

The Balance 2 launched at $299.99 in June 2025 and holds close to that price. The Charge 6 launched at $159.95 in 2023 and frequently sells for less now. That’s effectively a 2x price gap. The Balance 2 earns it on battery, GPS, and audio. The Charge 6 earns its place by being half the price of most “real” smartwatches while still doing the daily-tracker job well.

Technical Specs

Spec	Amazfit Balance 2	Fitbit Charge 6
Release Date	June 2025	September 2023
Launch Price	$299.99	$159.95
Case Size	47mm	36.73mm
Weight	43g	30g
Case Material	Aluminum alloy frame, fiber-reinforced polymer case	Aluminum, glass, resin
Water Rating	10 ATM	5 ATM
Display	1.5-inch AMOLED, 480 x 480	1.04-inch AMOLED, 184 x 276
Battery (Smartwatch)	504 hours (21 days)	168 hours (7 days)
Battery (GPS)	33 hours	5 hours
GPS	Multi-band	Built-in GPS + GLONASS
Connectivity	Bluetooth 5.2, Wi-Fi 2.4GHz, NFC	Bluetooth, NFC
NFC Payments	Yes	Yes
Mic & Speaker	Yes	No
Storage	32GB	System only
Sensors	HR (BioTracker 6.0), SpO2, accelerometer, gyroscope, geomagnetic, barometer, ambient light, temperature	HR, 3-axis accelerometer, SpO2, device temperature, ambient light, ECG, EDA, GPS + GLONASS

The Verdict

The Balance 2 wins this one for anyone who actually trains. Multi-band GPS, 33 hours of GPS battery, onboard music, and a mic and speaker make it a real training watch at a sub-$300 price. The Charge 6 simply can’t compete on the workout side — a 5-hour GPS battery is a dealbreaker for long sessions.

Buy the Amazfit Balance 2 if: You run, hike, ride, or swim seriously, want multi-day battery, and like the idea of leaving your phone behind on workouts.

Buy the Fitbit Charge 6 if: You want a slim, comfortable daily tracker, you live in the Fitbit/Google ecosystem, and ECG plus stress tracking matter more to you than GPS accuracy or all-day workout battery.