diff --git a/withings_sync/garmin.py b/withings_sync/garmin.py
index 26f98d8..1629427 100644
--- a/withings_sync/garmin.py
+++ b/withings_sync/garmin.py
@@ -5,6 +5,7 @@
 import os
 
 import garth
+
 # Temporary fix until Garth project merges https://github.com/matin/garth/issues/73
 garth.http.USER_AGENT = {"User-Agent": ("GCM-iOS-5.7.2.1")}
 
@@ -12,6 +13,7 @@
 
 HOME = os.getenv("HOME", ".")
 GARMIN_SESSION = os.getenv('GARMIN_SESSION', os.path.join(HOME, ".garmin_session"))
+GARMIN_DOMAIN_CN = (os.getenv('GARMIN_DOMAIN_CN', "False").lower == 'true')
 
 
 class LoginSucceeded(Exception):
@@ -31,6 +33,8 @@ class GarminConnect:
 
     def __init__(self) -> None:
         self.client = garth.Client()
+        if GARMIN_DOMAIN_CN:
+            self.client.configure(domain='garmin.cn')
 
     def login(self, email=None, password=None):
         if os.path.exists(GARMIN_SESSION):
diff --git a/withings_sync/sync.py b/withings_sync/sync.py
index e874d00..e5fc656 100644
--- a/withings_sync/sync.py
+++ b/withings_sync/sync.py
@@ -21,7 +21,7 @@
 from withings_sync.fit import FitEncoderWeight, FitEncoderBloodPressure
 
 
-def load_variable(env_var, secrets_file):
+def load_variable(env_var, secrets_file, default_value=""):
     """Load a variable from an environment variable or from a secrets file"""
     # Try to read the value from the secrets file. Silently fail if the file
     # cannot be read and use an empty value
@@ -29,7 +29,7 @@ def load_variable(env_var, secrets_file):
         with open(secrets_file, encoding='utf-8') as secret:
             value = secret.read().strip("\n")
     except OSError:
-        value = ""
+        value = default_value
 
     # Load variable from environment if it exists, otherwise use the
     # value read from the secrets file.
@@ -38,6 +38,7 @@ def load_variable(env_var, secrets_file):
 
 GARMIN_USERNAME = load_variable('GARMIN_USERNAME', "/run/secrets/garmin_username")
 GARMIN_PASSWORD = load_variable('GARMIN_PASSWORD', "/run/secrets/garmin_password")
+GARMIN_DOMAIN_CN = load_variable('GARMIN_DOMAIN_CN', "/run/secrets/garmin_domain_cn", "False")
 TRAINERROAD_USERNAME = load_variable('TRAINERROAD_USERNAME', "/run/secrets/trainerroad_username")
 TRAINERROAD_PASSWORD = load_variable('TRAINERROAD_PASSWORD', "/run/secrets/trainerroad_password")
 
@@ -148,6 +149,15 @@ def date_parser(date_string):
         help="Run verbosely."
     )
 
+    parser.add_argument(
+        "--garmin-china",
+        "-gcn",
+        default=GARMIN_DOMAIN_CN,
+        type=bool,
+        action="store_true",
+        help="if set to true, use garmin.cn domain"
+    )
+
     return parser.parse_args()