diff --git a/src/app_ui/sign/common/action/function_call_bin.rs b/src/app_ui/sign/common/action/function_call_bin.rs
index 2a06f69..fe0b6c0 100644
--- a/src/app_ui/sign/common/action/function_call_bin.rs
+++ b/src/app_ui/sign/common/action/function_call_bin.rs
@@ -1,6 +1,6 @@
 use crate::app_ui::fields_writer::FieldsWriter;
+use crate::parsing::types::common::action::function_call::ArgsBinaryRepresentation;
 use crate::utils::types::elipsis_fields::ElipsisFields;
-use crate::utils::types::hex_display::HexDisplay;
 
 pub struct FieldsContext {
     pub args_display_buf: [u8; 20],
@@ -14,7 +14,7 @@ impl FieldsContext {
     }
 }
 pub fn format<'b, 'a: 'b>(
-    args: &'b HexDisplay<200>,
+    args: &'b ArgsBinaryRepresentation,
     field_context: &'a mut FieldsContext,
     writer: &'_ mut FieldsWriter<'b, 7>,
 ) {
diff --git a/src/app_ui/sign/common/action/function_call_common.rs b/src/app_ui/sign/common/action/function_call_common.rs
index 40f9b6b..43ea96e 100644
--- a/src/app_ui/sign/common/action/function_call_common.rs
+++ b/src/app_ui/sign/common/action/function_call_common.rs
@@ -1,7 +1,4 @@
-use crate::{
-    parsing::{self},
-    utils::types::elipsis_fields::ElipsisFields,
-};
+use crate::{parsing, utils::types::elipsis_fields::ElipsisFields};
 use fmt_buffer::Buffer;
 use ledger_device_sdk::ui::gadgets::Field;
 
diff --git a/src/app_ui/sign/common/action/function_call_str.rs b/src/app_ui/sign/common/action/function_call_str.rs
index 1036582..bb30d68 100644
--- a/src/app_ui/sign/common/action/function_call_str.rs
+++ b/src/app_ui/sign/common/action/function_call_str.rs
@@ -1,4 +1,4 @@
-use crate::utils::types::capped_string::CappedString;
+use crate::parsing::types::common::action::function_call::ArgsStringRepresentation;
 
 use crate::app_ui::fields_writer::FieldsWriter;
 use crate::utils::types::elipsis_fields::ElipsisFields;
@@ -15,7 +15,7 @@ impl FieldsContext {
     }
 }
 pub fn format<'b, 'a: 'b>(
-    args: &'b CappedString<200>,
+    args: &'b ArgsStringRepresentation,
     field_context: &'a mut FieldsContext,
     writer: &'_ mut FieldsWriter<'b, 7>,
 ) {
diff --git a/src/app_ui/sign/common/action/mod.rs b/src/app_ui/sign/common/action/mod.rs
index 5449086..b4f936c 100644
--- a/src/app_ui/sign/common/action/mod.rs
+++ b/src/app_ui/sign/common/action/mod.rs
@@ -1,8 +1,7 @@
 use crate::{
     app_ui::fields_writer::FieldsWriter,
     handlers::common::action::ActionParams,
-    parsing,
-    utils::types::{capped_string::CappedString, hex_display::HexDisplay},
+    parsing::{self, types::common::action::function_call::{ArgsBinaryRepresentation, ArgsStringRepresentation}},
 };
 use fmt_buffer::Buffer;
 
@@ -124,7 +123,7 @@ pub fn ui_display_deploy_contract(
 
 pub fn ui_display_function_call_str(
     func_call_common: &parsing::types::FunctionCallCommon,
-    args: &CappedString<200>,
+    args: &ArgsStringRepresentation,
     params: ActionParams,
 ) -> bool {
     let mut writer: FieldsWriter<'_, 7> = FieldsWriter::new();
@@ -141,7 +140,7 @@ pub fn ui_display_function_call_str(
 
 pub fn ui_display_function_call_bin(
     func_call_common: &parsing::types::FunctionCallCommon,
-    args: &HexDisplay<200>,
+    args: &ArgsBinaryRepresentation,
     params: ActionParams,
 ) -> bool {
     let mut writer: FieldsWriter<'_, 7> = FieldsWriter::new();
diff --git a/src/handlers/common/action/function_call.rs b/src/handlers/common/action/function_call.rs
index cae3564..5e57903 100644
--- a/src/handlers/common/action/function_call.rs
+++ b/src/handlers/common/action/function_call.rs
@@ -1,3 +1,6 @@
+use crate::parsing::types::common::action::function_call::{
+    ArgsBinaryRepresentation, ArgsStringRepresentation,
+};
 use crate::parsing::types::FunctionCallCommon;
 use crate::sign_ui;
 use crate::utils::types::capped_string::CappedString;
@@ -31,11 +34,13 @@ pub fn handle(
     {
         // '{' char
         Some(123) => {
-            let mut args_str: CappedString<200> = CappedString::new();
+            let mut args_str: ArgsStringRepresentation = CappedString::new();
             match args_str.deserialize_with_bytes_count(stream, args_bytes_count) {
                 Err(err) if err.kind() == ErrorKind::InvalidData => {
-                    let mut args_bin: HexDisplay<200> = unsafe {
-                        core::mem::transmute::<CappedString<200>, HexDisplay<200>>(args_str)
+                    let mut args_bin: ArgsBinaryRepresentation = unsafe {
+                        core::mem::transmute::<ArgsStringRepresentation, ArgsBinaryRepresentation>(
+                            args_str,
+                        )
                     };
                     args_bin.reformat();
                     ArgsRepr::BinHex(args_bin)
@@ -47,7 +52,7 @@ pub fn handle(
             }
         }
         Some(_first_byte) => {
-            let mut args_bin: HexDisplay<200> = HexDisplay::new();
+            let mut args_bin: ArgsBinaryRepresentation = HexDisplay::new();
             args_bin
                 .deserialize_with_bytes_count(stream, args_bytes_count)
                 .map_err(|_err| AppSW::TxParsingFail)?;
@@ -85,6 +90,6 @@ fn handle_common(
 }
 
 enum ArgsRepr {
-    String(CappedString<200>),
-    BinHex(HexDisplay<200>),
+    String(ArgsStringRepresentation),
+    BinHex(ArgsBinaryRepresentation),
 }
diff --git a/src/parsing/types/common/action/function_call.rs b/src/parsing/types/common/action/function_call.rs
index a1e8f35..6dcd639 100644
--- a/src/parsing/types/common/action/function_call.rs
+++ b/src/parsing/types/common/action/function_call.rs
@@ -2,9 +2,23 @@ use near_gas::NearGas;
 use near_token::NearToken;
 
 use crate::utils::types::capped_string::CappedString;
+use crate::utils::types::hex_display::HexDisplay;
 use borsh::io::{Read, Result};
 use borsh::BorshDeserialize;
 
+#[cfg(target_os = "nanos")]
+pub type ArgsStringRepresentation = CappedString<200>;
+#[cfg(target_os = "nanos")]
+pub type ArgsBinaryRepresentation = HexDisplay<200>;
+#[cfg(target_os = "nanosplus")]
+pub type ArgsStringRepresentation = CappedString<1000>;
+#[cfg(target_os = "nanosplus")]
+pub type ArgsBinaryRepresentation = HexDisplay<1000>;
+#[cfg(target_os = "nanox")]
+pub type ArgsStringRepresentation = CappedString<1000>;
+#[cfg(target_os = "nanox")]
+pub type ArgsBinaryRepresentation = HexDisplay<1000>;
+
 pub struct FunctionCallCommon {
     pub method_name: CappedString<50>,
     pub gas: NearGas,